57881420 has 12 divisors (see below), whose sum is σ = 121551024. Its totient is φ = 23152560.

The previous prime is 57881389. The next prime is 57881437. The reversal of 57881420 is 2418875.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1447016 + ... + 1447055.

It is an arithmetic number, because the mean of its divisors is an integer number (10129252).

Almost surely, 2^57881420 is an apocalyptic number.

It is an amenable number.

57881420 is an abundant number, since it is smaller than the sum of its proper divisors (63669604).

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

57881420 is a wasteful number, since it uses less digits than its factorization.

57881420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2894080 (or 2894078 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 57881420 is about 7607.9839642313. The cubic root of 57881420 is about 386.8236860631.

The spelling of 57881420 in words is "fifty-seven million, eight hundred eighty-one thousand, four hundred twenty".