57297930 has 32 divisors (see below), whose sum is σ = 140716224. Its totient is φ = 14923776.

The previous prime is 57297917. The next prime is 57297937. The reversal of 57297930 is 3979275.

It is not an unprimeable number, because it can be changed into a prime (57297937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20919 + ... + 23498.

It is an arithmetic number, because the mean of its divisors is an integer number (4397382).

Almost surely, 2^57297930 is an apocalyptic number.

57297930 is an abundant number, since it is smaller than the sum of its proper divisors (83418294).

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

57297930 is a wasteful number, since it uses less digits than its factorization.

57297930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44470.

The product of its (nonzero) digits is 119070, while the sum is 42.

The square root of 57297930 is about 7569.5396161193. The cubic root of 57297930 is about 385.5194652047.

The spelling of 57297930 in words is "fifty-seven million, two hundred ninety-seven thousand, nine hundred thirty".