57735228 has 12 divisors (see below), whose sum is σ = 134715560. Its totient is φ = 19245072.

The previous prime is 57735211. The next prime is 57735239. The reversal of 57735228 is 82253775.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-4 number, since 4×57735228⁴ (a number of 32 digits) contains 4444 as substring.

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, 2405623 + ... + 2405646.

Almost surely, 2^57735228 is an apocalyptic number.

It is an amenable number.

57735228 is an abundant number, since it is smaller than the sum of its proper divisors (76980332).

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

57735228 is a wasteful number, since it uses less digits than its factorization.

57735228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4811276 (or 4811274 counting only the distinct ones).

The product of its digits is 117600, while the sum is 39.

The square root of 57735228 is about 7598.3700883808. The cubic root of 57735228 is about 386.4977426347.

The spelling of 57735228 in words is "fifty-seven million, seven hundred thirty-five thousand, two hundred twenty-eight".