39940368 has 40 divisors (see below), whose sum is σ = 111117888. Its totient is φ = 12289152.

The previous prime is 39940363. The next prime is 39940387. The reversal of 39940368 is 86304993.

It is not an unprimeable number, because it can be changed into a prime (39940363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31380 + ... + 32627.

Almost surely, 2^39940368 is an apocalyptic number.

It is an amenable number.

39940368 is an abundant number, since it is smaller than the sum of its proper divisors (71177520).

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

39940368 is a wasteful number, since it uses less digits than its factorization.

39940368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64031 (or 64025 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 39940368 is about 6319.8392384617. The cubic root of 39940368 is about 341.8251560027.

The spelling of 39940368 in words is "thirty-nine million, nine hundred forty thousand, three hundred sixty-eight".