57328020 has 48 divisors (see below), whose sum is σ = 178355520. Its totient is φ = 15287328.

The previous prime is 57328013. The next prime is 57328043. The reversal of 57328020 is 2082375.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52542 + ... + 53621.

It is an arithmetic number, because the mean of its divisors is an integer number (3715740).

Almost surely, 2^57328020 is an apocalyptic number.

It is an amenable number.

57328020 is an abundant number, since it is smaller than the sum of its proper divisors (121027500).

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

57328020 is a wasteful number, since it uses less digits than its factorization.

57328020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106181 (or 106173 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 57328020 is about 7571.5269265849. The cubic root of 57328020 is about 385.5869385594.

The spelling of 57328020 in words is "fifty-seven million, three hundred twenty-eight thousand, twenty".