57131384 has 16 divisors (see below), whose sum is σ = 107382120. Its totient is φ = 28496160.

The previous prime is 57131377. The next prime is 57131413. The reversal of 57131384 is 48313175.

It is a self number, because there is not a number n which added to its sum of digits gives 57131384.

It is a congruent number.

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, 5114 + ... + 11849.

Almost surely, 2^57131384 is an apocalyptic number.

It is an amenable number.

57131384 is a deficient number, since it is larger than the sum of its proper divisors (50250736).

57131384 is a wasteful number, since it uses less digits than its factorization.

57131384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17390 (or 17386 counting only the distinct ones).

The product of its digits is 10080, while the sum is 32.

The square root of 57131384 is about 7558.5305450200. The cubic root of 57131384 is about 385.1455771504.

The spelling of 57131384 in words is "fifty-seven million, one hundred thirty-one thousand, three hundred eighty-four".