57470640 has 40 divisors (see below), whose sum is σ = 178159728. Its totient is φ = 15325440.

The previous prime is 57470639. The next prime is 57470671. The reversal of 57470640 is 4607475.

It is a tau number, because it is divible by the number of its divisors (40).

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, 119491 + ... + 119970.

Almost surely, 2^57470640 is an apocalyptic number.

It is an amenable number.

57470640 is an abundant number, since it is smaller than the sum of its proper divisors (120689088).

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

57470640 is a wasteful number, since it uses less digits than its factorization.

57470640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239477 (or 239471 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 57470640 is about 7580.9392557915. The cubic root of 57470640 is about 385.9064267081.

The spelling of 57470640 in words is "fifty-seven million, four hundred seventy thousand, six hundred forty".