57296820 has 48 divisors (see below), whose sum is σ = 183351168. Its totient is φ = 13096320.

The previous prime is 57296801. The next prime is 57296821. The reversal of 57296820 is 2869275.

It is a happy number.

It is a super-2 number, since 2×57296820² = 6565851164224800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57296821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67791 + ... + 68630.

It is an arithmetic number, because the mean of its divisors is an integer number (3819816).

Almost surely, 2^57296820 is an apocalyptic number.

It is an amenable number.

57296820 is an abundant number, since it is smaller than the sum of its proper divisors (126054348).

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

57296820 is a wasteful number, since it uses less digits than its factorization.

57296820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136440 (or 136438 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 57296820 is about 7569.4662955852. The cubic root of 57296820 is about 385.5169757060.

The spelling of 57296820 in words is "fifty-seven million, two hundred ninety-six thousand, eight hundred twenty".