64744464 has 20 divisors (see below), whose sum is σ = 167256656. Its totient is φ = 21581472.

The previous prime is 64744411. The next prime is 64744489. The reversal of 64744464 is 46444746.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 674374 + ... + 674469.

Almost surely, 2^64744464 is an apocalyptic number.

It is an amenable number.

64744464 is an abundant number, since it is smaller than the sum of its proper divisors (102512192).

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

64744464 is a wasteful number, since it uses less digits than its factorization.

64744464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348854 (or 1348848 counting only the distinct ones).

The product of its digits is 258048, while the sum is 39.

The square root of 64744464 is about 8046.3944720601. The cubic root of 64744464 is about 401.5449914868.

The spelling of 64744464 in words is "sixty-four million, seven hundred forty-four thousand, four hundred sixty-four".