57264728 has 16 divisors (see below), whose sum is σ = 107502000. Its totient is φ = 28597536.

The previous prime is 57264707. The next prime is 57264737. The reversal of 57264728 is 82746275.

57264728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3458 + ... + 11246.

It is an arithmetic number, because the mean of its divisors is an integer number (6718875).

Almost surely, 2^57264728 is an apocalyptic number.

It is an amenable number.

57264728 is a deficient number, since it is larger than the sum of its proper divisors (50237272).

57264728 is a wasteful number, since it uses less digits than its factorization.

57264728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8714 (or 8710 counting only the distinct ones).

The product of its digits is 188160, while the sum is 41.

The square root of 57264728 is about 7567.3461662593. The cubic root of 57264728 is about 385.4449861298. Note that the first 3 decimals are identical.

The spelling of 57264728 in words is "fifty-seven million, two hundred sixty-four thousand, seven hundred twenty-eight".