39746864 has 10 divisors (see below), whose sum is σ = 77009580. Its totient is φ = 19873424.

The previous prime is 39746831. The next prime is 39746891. The reversal of 39746864 is 46864793.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1242074 + ... + 1242105.

It is an arithmetic number, because the mean of its divisors is an integer number (7700958).

Almost surely, 2^39746864 is an apocalyptic number.

It is an amenable number.

39746864 is a deficient number, since it is larger than the sum of its proper divisors (37262716).

39746864 is a wasteful number, since it uses less digits than its factorization.

39746864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2484187 (or 2484181 counting only the distinct ones).

The product of its digits is 870912, while the sum is 47.

The square root of 39746864 is about 6304.5114005766. The cubic root of 39746864 is about 341.2722346830.

The spelling of 39746864 in words is "thirty-nine million, seven hundred forty-six thousand, eight hundred sixty-four".