64056040 has 32 divisors (see below), whose sum is σ = 146107080. Its totient is φ = 25270272.

The previous prime is 64056037. The next prime is 64056053. The reversal of 64056040 is 4065046.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 42693156 + 21362884 = 6534^2 + 4622^2 .

It is a junction number, because it is equal to n+sod(n) for n = 64055996 and 64056014.

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, 8049 + ... + 13888.

Almost surely, 2^64056040 is an apocalyptic number.

It is an amenable number.

64056040 is an abundant number, since it is smaller than the sum of its proper divisors (82051040).

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

64056040 is a wasteful number, since it uses less digits than its factorization.

64056040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22021 (or 22017 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 64056040 is about 8003.5017336164. The cubic root of 64056040 is about 400.1167159402.

The spelling of 64056040 in words is "sixty-four million, fifty-six thousand, forty", and thus it is an eban number.