57704144 has 40 divisors (see below), whose sum is σ = 116087808. Its totient is φ = 27757440.

The previous prime is 57704131. The next prime is 57704167. The reversal of 57704144 is 44140775.

It is a self number, because there is not a number n which added to its sum of digits gives 57704144.

It is a congruent 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, 157049 + ... + 157415.

Almost surely, 2^57704144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57704144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58043904).

57704144 is an abundant number, since it is smaller than the sum of its proper divisors (58383664).

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

57704144 is a wasteful number, since it uses less digits than its factorization.

57704144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723 (or 717 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 57704144 is about 7596.3243743274. The cubic root of 57704144 is about 386.4283681647.

The spelling of 57704144 in words is "fifty-seven million, seven hundred four thousand, one hundred forty-four".