12738942 has 24 divisors (see below), whose sum is σ = 27849744. Its totient is φ = 4208064.

The previous prime is 12738919. The next prime is 12738959. The reversal of 12738942 is 24983721.

12738942 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12738897 and 12738906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1098 + ... + 5165.

It is an arithmetic number, because the mean of its divisors is an integer number (1160406).

Almost surely, 2^12738942 is an apocalyptic number.

12738942 is an abundant number, since it is smaller than the sum of its proper divisors (15110802).

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

12738942 is a wasteful number, since it uses less digits than its factorization.

12738942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6384 (or 6381 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 12738942 is about 3569.1654486728. The cubic root of 12738942 is about 233.5488788295.

The spelling of 12738942 in words is "twelve million, seven hundred thirty-eight thousand, nine hundred forty-two".