42372868 has 12 divisors (see below), whose sum is σ = 74340252. Its totient is φ = 21132800.

The previous prime is 42372821. The next prime is 42372893. The reversal of 42372868 is 86827324.

It can be written as a sum of positive squares in 2 ways, for example, as 27688644 + 14684224 = 5262^2 + 3832^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42372868.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11605 + ... + 14812.

It is an arithmetic number, because the mean of its divisors is an integer number (6195021).

Almost surely, 2^42372868 is an apocalyptic number.

It is an amenable number.

42372868 is a deficient number, since it is larger than the sum of its proper divisors (31967384).

42372868 is a wasteful number, since it uses less digits than its factorization.

42372868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26822 (or 26820 counting only the distinct ones).

The product of its digits is 129024, while the sum is 40.

The square root of 42372868 is about 6509.4445231525. Note that the first 3 decimals coincide. The cubic root of 42372868 is about 348.6282854426.

The spelling of 42372868 in words is "forty-two million, three hundred seventy-two thousand, eight hundred sixty-eight".