39966874 has 16 divisors (see below), whose sum is σ = 62588160. Its totient is φ = 19118880.

The previous prime is 39966859. The next prime is 39966887. The reversal of 39966874 is 47866993.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1897 + ... + 9139.

It is an arithmetic number, because the mean of its divisors is an integer number (3911760).

Almost surely, 2^39966874 is an apocalyptic number.

39966874 is a deficient number, since it is larger than the sum of its proper divisors (22621286).

39966874 is a wasteful number, since it uses less digits than its factorization.

39966874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7365.

The product of its digits is 1959552, while the sum is 52.

The square root of 39966874 is about 6321.9359376697. The cubic root of 39966874 is about 341.9007554901.

The spelling of 39966874 in words is "thirty-nine million, nine hundred sixty-six thousand, eight hundred seventy-four".