57990828 has 24 divisors (see below), whose sum is σ = 154642432. Its totient is φ = 16568784.

The previous prime is 57990817. The next prime is 57990839. The reversal of 57990828 is 82809975.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (57990817) and next prime (57990839).

It is a super-2 number, since 2×57990828² = 6725872264251168, which contains 22 as substring.

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, 345100 + ... + 345267.

Almost surely, 2^57990828 is an apocalyptic number.

It is an amenable number.

57990828 is an abundant number, since it is smaller than the sum of its proper divisors (96651604).

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

57990828 is a wasteful number, since it uses less digits than its factorization.

57990828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690381 (or 690379 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 48.

The square root of 57990828 is about 7615.1709107544. The cubic root of 57990828 is about 387.0672585730.

The spelling of 57990828 in words is "fifty-seven million, nine hundred ninety thousand, eight hundred twenty-eight".