57919920 has 40 divisors (see below), whose sum is σ = 179552496. Its totient is φ = 15445248.

The previous prime is 57919919. The next prime is 57919949. The reversal of 57919920 is 2991975.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120427 + ... + 120906.

Almost surely, 2^57919920 is an apocalyptic number.

It is an amenable number.

57919920 is an abundant number, since it is smaller than the sum of its proper divisors (121632576).

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

57919920 is a wasteful number, since it uses less digits than its factorization.

57919920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241349 (or 241343 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 42.

The square root of 57919920 is about 7610.5137802911. The cubic root of 57919920 is about 386.9094326991.

The spelling of 57919920 in words is "fifty-seven million, nine hundred nineteen thousand, nine hundred twenty".