57397388 has 12 divisors (see below), whose sum is σ = 101213112. Its totient is φ = 28479360.

The previous prime is 57397381. The next prime is 57397411. The reversal of 57397388 is 88379375.

57397388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (57397381) by changing a digit.

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, 54245 + ... + 55292.

It is an arithmetic number, because the mean of its divisors is an integer number (8434426).

Almost surely, 2^57397388 is an apocalyptic number.

It is an amenable number.

57397388 is a deficient number, since it is larger than the sum of its proper divisors (43815724).

57397388 is a wasteful number, since it uses less digits than its factorization.

57397388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109672 (or 109670 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 50.

The square root of 57397388 is about 7576.1063878486. The cubic root of 57397388 is about 385.7423983951.

The spelling of 57397388 in words is "fifty-seven million, three hundred ninety-seven thousand, three hundred eighty-eight".