57197742 has 32 divisors (see below), whose sum is σ = 132585984. Its totient is φ = 16111200.

The previous prime is 57197737. The next prime is 57197761. The reversal of 57197742 is 24779175.

57197742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 57197694 and 57197703.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6609 + ... + 12572.

It is an arithmetic number, because the mean of its divisors is an integer number (4143312).

Almost surely, 2^57197742 is an apocalyptic number.

57197742 is an abundant number, since it is smaller than the sum of its proper divisors (75388242).

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

57197742 is a wasteful number, since it uses less digits than its factorization.

57197742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19264.

The product of its digits is 123480, while the sum is 42.

The square root of 57197742 is about 7562.9188809612. The cubic root of 57197742 is about 385.2946347541.

The spelling of 57197742 in words is "fifty-seven million, one hundred ninety-seven thousand, seven hundred forty-two".