57228684 has 24 divisors (see below), whose sum is σ = 140562240. Its totient is φ = 18072144.

The previous prime is 57228679. The next prime is 57228701. The reversal of 57228684 is 48682275.

It is a happy number.

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, 125274 + ... + 125729.

It is an arithmetic number, because the mean of its divisors is an integer number (5856760).

Almost surely, 2^57228684 is an apocalyptic number.

It is an amenable number.

57228684 is an abundant number, since it is smaller than the sum of its proper divisors (83333556).

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

57228684 is a wasteful number, since it uses less digits than its factorization.

57228684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251029 (or 251027 counting only the distinct ones).

The product of its digits is 215040, while the sum is 42.

The square root of 57228684 is about 7564.9642431409. The cubic root of 57228684 is about 385.3640992531.

The spelling of 57228684 in words is "fifty-seven million, two hundred twenty-eight thousand, six hundred eighty-four".