12939942 has 16 divisors (see below), whose sum is σ = 25948080. Its totient is φ = 4301952.

The previous prime is 12939937. The next prime is 12939943. The reversal of 12939942 is 24993921.

12939942 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 12939942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12939943) 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, 183 + ... + 5090.

It is an arithmetic number, because the mean of its divisors is an integer number (1621755).

Almost surely, 2^12939942 is an apocalyptic number.

12939942 is an abundant number, since it is smaller than the sum of its proper divisors (13008138).

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

12939942 is a wasteful number, since it uses less digits than its factorization.

12939942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5687.

The product of its digits is 34992, while the sum is 39.

The square root of 12939942 is about 3597.2130879335. The cubic root of 12939942 is about 234.7708162473.

The spelling of 12939942 in words is "twelve million, nine hundred thirty-nine thousand, nine hundred forty-two".