12499428 has 12 divisors (see below), whose sum is σ = 29165360. Its totient is φ = 4166472.

The previous prime is 12499381. The next prime is 12499439. The reversal of 12499428 is 82499421.

It is a tau number, because it is divible by the number of its divisors (12).

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, 520798 + ... + 520821.

Almost surely, 2^12499428 is an apocalyptic number.

It is an amenable number.

12499428 is an abundant number, since it is smaller than the sum of its proper divisors (16665932).

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

12499428 is a wasteful number, since it uses less digits than its factorization.

12499428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041626 (or 1041624 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 12499428 is about 3535.4530119915. The cubic root of 12499428 is about 232.0759016416.

The spelling of 12499428 in words is "twelve million, four hundred ninety-nine thousand, four hundred twenty-eight".