57243276 has 36 divisors (see below), whose sum is σ = 152315800. Its totient is φ = 18076608.

The previous prime is 57243269. The next prime is 57243293. The reversal of 57243276 is 67234275.

It is a happy number.

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 self number, because there is not a number n which added to its sum of digits gives 57243276.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41161 + ... + 42528.

Almost surely, 2^57243276 is an apocalyptic number.

It is an amenable number.

57243276 is an abundant number, since it is smaller than the sum of its proper divisors (95072524).

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

57243276 is a wasteful number, since it uses less digits than its factorization.

57243276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83718 (or 83713 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 57243276 is about 7565.9286277363. The cubic root of 57243276 is about 385.3968494679.

Subtracting 57243276 from its reverse (67234275), we obtain a palindrome (9990999).

The spelling of 57243276 in words is "fifty-seven million, two hundred forty-three thousand, two hundred seventy-six".