64044416 has 32 divisors (see below), whose sum is σ = 127969200. Its totient is φ = 31926784.

The previous prime is 64044413. The next prime is 64044439. The reversal of 64044416 is 61444046.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64044413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64661 + ... + 65643.

Almost surely, 2^64044416 is an apocalyptic number.

It is an amenable number.

64044416 is a deficient number, since it is larger than the sum of its proper divisors (63924784).

64044416 is an equidigital number, since it uses as much as digits as its factorization.

64044416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506 (or 1494 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 64044416 is about 8002.7755185311. The cubic root of 64044416 is about 400.0925119355.

The spelling of 64044416 in words is "sixty-four million, forty-four thousand, four hundred sixteen".