57392490 has 32 divisors (see below), whose sum is σ = 137992896. Its totient is φ = 15276800.

The previous prime is 57392477. The next prime is 57392507. The reversal of 57392490 is 9429375.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19090 + ... + 21890.

It is an arithmetic number, because the mean of its divisors is an integer number (4312278).

Almost surely, 2^57392490 is an apocalyptic number.

57392490 is an abundant number, since it is smaller than the sum of its proper divisors (80600406).

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

57392490 is a wasteful number, since it uses less digits than its factorization.

57392490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3494.

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 57392490 is about 7575.7831278357. The cubic root of 57392490 is about 385.7314256542.

The spelling of 57392490 in words is "fifty-seven million, three hundred ninety-two thousand, four hundred ninety".