12389992 has 16 divisors (see below), whose sum is σ = 23306400. Its totient is φ = 6174960.

The previous prime is 12389983. The next prime is 12390011. The reversal of 12389992 is 29998321.

12389992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 309 + ... + 4987.

It is an arithmetic number, because the mean of its divisors is an integer number (1456650).

Almost surely, 2^12389992 is an apocalyptic number.

It is an amenable number.

12389992 is a deficient number, since it is larger than the sum of its proper divisors (10916408).

12389992 is a wasteful number, since it uses less digits than its factorization.

12389992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5016 (or 5012 counting only the distinct ones).

The product of its digits is 69984, while the sum is 43.

The square root of 12389992 is about 3519.9420449774. The cubic root of 12389992 is about 231.3966187805.

The spelling of 12389992 in words is "twelve million, three hundred eighty-nine thousand, nine hundred ninety-two".