<SEC-DOCUMENT>0000100334-20-000060-index.html : 20200625
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<ACCEPTANCE-DATETIME>20200625134036
ACCESSION NUMBER:		0000100334-20-000060
CONFORMED SUBMISSION TYPE:	N-CSRS
PUBLIC DOCUMENT COUNT:		6
CONFORMED PERIOD OF REPORT:	20200430
FILED AS OF DATE:		20200625
DATE AS OF CHANGE:		20200625
EFFECTIVENESS DATE:		20200625

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AMERICAN CENTURY MUTUAL FUNDS, INC.
		CENTRAL INDEX KEY:			0000100334
		IRS NUMBER:				446006315
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1031

	FILING VALUES:
		FORM TYPE:		N-CSRS
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-00816
		FILM NUMBER:		20988428

	BUSINESS ADDRESS:	
		STREET 1:		4500 MAIN STREET
		CITY:			KANSAS CITY
		STATE:			MO
		ZIP:			64111
		BUSINESS PHONE:		816-531-5575

	MAIL ADDRESS:	
		STREET 1:		4500 MAIN STREET
		CITY:			KANSAS CITY
		STATE:			MO
		ZIP:			64111

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AMERICAN CENTURY MUTUAL FUNDS INC
		DATE OF NAME CHANGE:	19970107

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	TWENTIETH CENTURY INVESTORS INC
		DATE OF NAME CHANGE:	19920703
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Document 1 - file: acmf43020n-csr.htm

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<TYPE>EX-99.0
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<DESCRIPTION>EXHIBIT 99.0
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Document 2 - file: acmf43020ex-99cert.htm

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Document 3 - file: acmf43020ex-99906cert.htm

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Document 4 - file: acihorizblkd47.jpg

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Document 5 - file: jthomasrev0514a11.jpg

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Document 6 - file: image48a16.jpg

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