57972990 has 96 divisors (see below), whose sum is σ = 151095456. Its totient is φ = 14227200.

The previous prime is 57972989. The next prime is 57973031. The reversal of 57972990 is 9927975.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 573940 + ... + 574040.

It is an arithmetic number, because the mean of its divisors is an integer number (1573911).

Almost surely, 2^57972990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57972990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75547728).

57972990 is an abundant number, since it is smaller than the sum of its proper divisors (93122466).

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

57972990 is a wasteful number, since it uses less digits than its factorization.

57972990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 357210, while the sum is 48.

The square root of 57972990 is about 7613.9996059890. Note that the first 3 decimals coincide. The cubic root of 57972990 is about 387.0275671594.

The spelling of 57972990 in words is "fifty-seven million, nine hundred seventy-two thousand, nine hundred ninety".