57147402 has 32 divisors (see below), whose sum is σ = 129568320. Its totient is φ = 16657920.

The previous prime is 57147401. The next prime is 57147413. The reversal of 57147402 is 20474175.

It is a self number, because there is not a number n which added to its sum of digits gives 57147402.

It is not an unprimeable number, because it can be changed into a prime (57147401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17799 + ... + 20762.

It is an arithmetic number, because the mean of its divisors is an integer number (4049010).

Almost surely, 2^57147402 is an apocalyptic number.

57147402 is an abundant number, since it is smaller than the sum of its proper divisors (72420918).

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

57147402 is a wasteful number, since it uses less digits than its factorization.

57147402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38598.

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 57147402 is about 7559.5900682511. The cubic root of 57147402 is about 385.1815683748.

The spelling of 57147402 in words is "fifty-seven million, one hundred forty-seven thousand, four hundred two".