39712940 has 24 divisors (see below), whose sum is σ = 83870640. Its totient is φ = 15795008.

The previous prime is 39712913. The next prime is 39712963. The reversal of 39712940 is 4921793.

It is a self number, because there is not a number n which added to its sum of digits gives 39712940.

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, 1967 + ... + 9126.

It is an arithmetic number, because the mean of its divisors is an integer number (3494610).

Almost surely, 2^39712940 is an apocalyptic number.

It is an amenable number.

39712940 is an abundant number, since it is smaller than the sum of its proper divisors (44157700).

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

39712940 is a wasteful number, since it uses less digits than its factorization.

39712940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11281 (or 11279 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 39712940 is about 6301.8203719243. The cubic root of 39712940 is about 341.1751149488.

The spelling of 39712940 in words is "thirty-nine million, seven hundred twelve thousand, nine hundred forty".