42187568 has 20 divisors (see below), whose sum is σ = 81945648. Its totient is φ = 21040320.

The previous prime is 42187549. The next prime is 42187571. The reversal of 42187568 is 86578124.

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, 3605 + ... + 9867.

Almost surely, 2^42187568 is an apocalyptic number.

It is an amenable number.

42187568 is a deficient number, since it is larger than the sum of its proper divisors (39758080).

42187568 is a wasteful number, since it uses less digits than its factorization.

42187568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6692 (or 6686 counting only the distinct ones).

The product of its digits is 107520, while the sum is 41.

The square root of 42187568 is about 6495.1957630236. The cubic root of 42187568 is about 348.1193495597.

The spelling of 42187568 in words is "forty-two million, one hundred eighty-seven thousand, five hundred sixty-eight".