64039480 has 32 divisors (see below), whose sum is σ = 145832400. Its totient is φ = 25305856.

The previous prime is 64039477. The next prime is 64039537. The reversal of 64039480 is 8493046.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6325 + ... + 12964.

Almost surely, 2^64039480 is an apocalyptic number.

It is an amenable number.

64039480 is an abundant number, since it is smaller than the sum of its proper divisors (81792920).

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

64039480 is a wasteful number, since it uses less digits than its factorization.

64039480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19383 (or 19379 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 64039480 is about 8002.4671195826. The cubic root of 64039480 is about 400.0822330931.

The spelling of 64039480 in words is "sixty-four million, thirty-nine thousand, four hundred eighty".