12489392 has 10 divisors (see below), whose sum is σ = 24198228. Its totient is φ = 6244688.

The previous prime is 12489371. The next prime is 12489427. The reversal of 12489392 is 29398421.

12489392 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 as a sum of consecutive naturals, namely, 390278 + ... + 390309.

Almost surely, 2^12489392 is an apocalyptic number.

It is an amenable number.

12489392 is a deficient number, since it is larger than the sum of its proper divisors (11708836).

12489392 is an equidigital number, since it uses as much as digits as its factorization.

12489392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780595 (or 780589 counting only the distinct ones).

The product of its digits is 31104, while the sum is 38.

The square root of 12489392 is about 3534.0333897687. The cubic root of 12489392 is about 232.0137724682.

The spelling of 12489392 in words is "twelve million, four hundred eighty-nine thousand, three hundred ninety-two".