39213912 has 16 divisors (see below), whose sum is σ = 98034840. Its totient is φ = 13071296.

The previous prime is 39213907. The next prime is 39213913. The reversal of 39213912 is 21931293.

It is a happy number.

39213912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 39213912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39213913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 816933 + ... + 816980.

Almost surely, 2^39213912 is an apocalyptic number.

It is an amenable number.

39213912 is an abundant number, since it is smaller than the sum of its proper divisors (58820928).

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

39213912 is a wasteful number, since it uses less digits than its factorization.

39213912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1633922 (or 1633918 counting only the distinct ones).

The product of its digits is 2916, while the sum is 30.

The square root of 39213912 is about 6262.1012447900. The cubic root of 39213912 is about 339.7400319565.

The spelling of 39213912 in words is "thirty-nine million, two hundred thirteen thousand, nine hundred twelve".