57298920 has 64 divisors (see below), whose sum is σ = 196456320. Its totient is φ = 13096704.

The previous prime is 57298909. The next prime is 57298931. The reversal of 57298920 is 2989275.

It is an interprime number because it is at equal distance from previous prime (57298909) and next prime (57298931).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33267 + ... + 34946.

It is an arithmetic number, because the mean of its divisors is an integer number (3069630).

Almost surely, 2^57298920 is an apocalyptic number.

It is an amenable number.

57298920 is an abundant number, since it is smaller than the sum of its proper divisors (139157400).

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

57298920 is a wasteful number, since it uses less digits than its factorization.

57298920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68234 (or 68230 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 57298920 is about 7569.6050095101. The cubic root of 57298920 is about 385.5216855413.

The spelling of 57298920 in words is "fifty-seven million, two hundred ninety-eight thousand, nine hundred twenty".