39974286 has 24 divisors (see below), whose sum is σ = 87878952. Its totient is φ = 12113200.

The previous prime is 39974279. The next prime is 39974287. The reversal of 39974286 is 68247993.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39974287) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26805 + ... + 28256.

It is an arithmetic number, because the mean of its divisors is an integer number (3661623).

Almost surely, 2^39974286 is an apocalyptic number.

39974286 is an abundant number, since it is smaller than the sum of its proper divisors (47904666).

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

39974286 is a wasteful number, since it uses less digits than its factorization.

39974286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55088 (or 55077 counting only the distinct ones).

The product of its digits is 653184, while the sum is 48.

The square root of 39974286 is about 6322.5221233302. The cubic root of 39974286 is about 341.9218897571.

The spelling of 39974286 in words is "thirty-nine million, nine hundred seventy-four thousand, two hundred eighty-six".