57328388 has 24 divisors (see below), whose sum is σ = 108353112. Its totient is φ = 26383104.

The previous prime is 57328363. The next prime is 57328399. The reversal of 57328388 is 88382375.

It can be written as a sum of positive squares in 4 ways, for example, as 506944 + 56821444 = 712^2 + 7538^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19256 + ... + 22032.

It is an arithmetic number, because the mean of its divisors is an integer number (4514713).

Almost surely, 2^57328388 is an apocalyptic number.

It is an amenable number.

57328388 is a deficient number, since it is larger than the sum of its proper divisors (51024724).

57328388 is a wasteful number, since it uses less digits than its factorization.

57328388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3191 (or 3189 counting only the distinct ones).

The product of its digits is 322560, while the sum is 44.

The square root of 57328388 is about 7571.5512281170. The cubic root of 57328388 is about 385.5877636108.

The spelling of 57328388 in words is "fifty-seven million, three hundred twenty-eight thousand, three hundred eighty-eight".