57323990 has 16 divisors (see below), whose sum is σ = 103997952. Its totient is φ = 22748544.

The previous prime is 57323953. The next prime is 57323999. The reversal of 57323990 is 9932375.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57323999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21299 + ... + 23838.

It is an arithmetic number, because the mean of its divisors is an integer number (6499872).

Almost surely, 2^57323990 is an apocalyptic number.

57323990 is a deficient number, since it is larger than the sum of its proper divisors (46673962).

57323990 is a wasteful number, since it uses less digits than its factorization.

57323990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45271.

The product of its (nonzero) digits is 51030, while the sum is 38.

The square root of 57323990 is about 7571.2607932893. The cubic root of 57323990 is about 385.5779031187.

The spelling of 57323990 in words is "fifty-seven million, three hundred twenty-three thousand, nine hundred ninety".