57681884 has 48 divisors (see below), whose sum is σ = 120149568. Its totient is φ = 23958528.

The previous prime is 57681857. The next prime is 57681887. The reversal of 57681884 is 48818675.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57681887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18914 + ... + 21750.

It is an arithmetic number, because the mean of its divisors is an integer number (2503116).

Almost surely, 2^57681884 is an apocalyptic number.

It is an amenable number.

57681884 is an abundant number, since it is smaller than the sum of its proper divisors (62467684).

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

57681884 is a wasteful number, since it uses less digits than its factorization.

57681884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2894 (or 2892 counting only the distinct ones).

The product of its digits is 430080, while the sum is 47.

The square root of 57681884 is about 7594.8590507000. The cubic root of 57681884 is about 386.3786721279.

The spelling of 57681884 in words is "fifty-seven million, six hundred eighty-one thousand, eight hundred eighty-four".