12940912 has 20 divisors (see below), whose sum is σ = 25685856. Its totient is φ = 6312320.

The previous prime is 12940909. The next prime is 12940937. The reversal of 12940912 is 21904921.

It is a happy number.

12940912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9208 + ... + 10519.

Almost surely, 2^12940912 is an apocalyptic number.

It is an amenable number.

12940912 is a deficient number, since it is larger than the sum of its proper divisors (12744944).

12940912 is a wasteful number, since it uses less digits than its factorization.

12940912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19776 (or 19770 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 12940912 is about 3597.3479120041. The cubic root of 12940912 is about 234.7766823736.

It can be divided in two parts, 129 and 40912, that added together give a triangular number (41041 = T₂₈₆).

The spelling of 12940912 in words is "twelve million, nine hundred forty thousand, nine hundred twelve".