57200970 has 16 divisors (see below), whose sum is σ = 137282400. Its totient is φ = 15253584.

The previous prime is 57200959. The next prime is 57200989. The reversal of 57200970 is 7900275.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 1906699 = 57200970 / (5 + 7 + 2 + 0 + 0 + 9 + 7 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 953320 + ... + 953379.

It is an arithmetic number, because the mean of its divisors is an integer number (8580150).

Almost surely, 2^57200970 is an apocalyptic number.

57200970 is an abundant number, since it is smaller than the sum of its proper divisors (80081430).

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

57200970 is a wasteful number, since it uses less digits than its factorization.

57200970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1906709.

The product of its (nonzero) digits is 4410, while the sum is 30.

The square root of 57200970 is about 7563.1322876173. The cubic root of 57200970 is about 385.3018827540.

The spelling of 57200970 in words is "fifty-seven million, two hundred thousand, nine hundred seventy".