57142858 has 16 divisors (see below), whose sum is σ = 88897536. Its totient is φ = 27519120.

The previous prime is 57142853. The next prime is 57142907. The reversal of 57142858 is 85824175.

It is a self number, because there is not a number n which added to its sum of digits gives 57142858.

It is not an unprimeable number, because it can be changed into a prime (57142853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11760 + ... + 15892.

It is an arithmetic number, because the mean of its divisors is an integer number (5556096).

Almost surely, 2^57142858 is an apocalyptic number.

57142858 is a deficient number, since it is larger than the sum of its proper divisors (31754678).

57142858 is a wasteful number, since it uses less digits than its factorization.

57142858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4389.

The product of its digits is 89600, while the sum is 40.

The square root of 57142858 is about 7559.2895168792. The cubic root of 57142858 is about 385.1713590367.

The spelling of 57142858 in words is "fifty-seven million, one hundred forty-two thousand, eight hundred fifty-eight".