64374464 has 56 divisors (see below), whose sum is σ = 159276288. Its totient is φ = 25079040.

The previous prime is 64374433. The next prime is 64374467. The reversal of 64374464 is 46447346.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (64374467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1604 + ... + 11459.

Almost surely, 2^64374464 is an apocalyptic number.

64374464 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

64374464 is an abundant number, since it is smaller than the sum of its proper divisors (94901824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64374464 is a wasteful number, since it uses less digits than its factorization.

64374464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13093 (or 13083 counting only the distinct ones).

The product of its digits is 193536, while the sum is 38.

The square root of 64374464 is about 8023.3698655864. The cubic root of 64374464 is about 400.7786167399.

It can be divided in two parts, 6437 and 4464, that added together give a palindrome (10901).

The spelling of 64374464 in words is "sixty-four million, three hundred seventy-four thousand, four hundred sixty-four".