57453228 has 36 divisors (see below), whose sum is σ = 165976720. Its totient is φ = 16415136.

The previous prime is 57453173. The next prime is 57453229. The reversal of 57453228 is 82235475.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 57453192 and 57453201.

It is not an unprimeable number, because it can be changed into a prime (57453229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 113743 + ... + 114246.

Almost surely, 2^57453228 is an apocalyptic number.

It is an amenable number.

57453228 is an abundant number, since it is smaller than the sum of its proper divisors (108523492).

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

57453228 is a wasteful number, since it uses less digits than its factorization.

57453228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228006 (or 228001 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 57453228 is about 7579.7907622836. The cubic root of 57453228 is about 385.8674498125.

The spelling of 57453228 in words is "fifty-seven million, four hundred fifty-three thousand, two hundred twenty-eight".