39681116 has 12 divisors (see below), whose sum is σ = 71682240. Its totient is φ = 19200480.

The previous prime is 39681067. The next prime is 39681127. The reversal of 39681116 is 61118693.

It is a congruent number.

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, 159881 + ... + 160128.

It is an arithmetic number, because the mean of its divisors is an integer number (5973520).

Almost surely, 2^39681116 is an apocalyptic number.

It is an amenable number.

39681116 is a deficient number, since it is larger than the sum of its proper divisors (32001124).

39681116 is a wasteful number, since it uses less digits than its factorization.

39681116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320044 (or 320042 counting only the distinct ones).

The product of its digits is 7776, while the sum is 35.

The square root of 39681116 is about 6299.2948811752. The cubic root of 39681116 is about 341.0839569334.

The spelling of 39681116 in words is "thirty-nine million, six hundred eighty-one thousand, one hundred sixteen".