12499744 has 24 divisors (see below), whose sum is σ = 25135488. Its totient is φ = 6116160.

The previous prime is 12499733. The next prime is 12499757. The reversal of 12499744 is 44799421.

It is a junction number, because it is equal to n+sod(n) for n = 12499697 and 12499706.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2652 + ... + 5659.

It is an arithmetic number, because the mean of its divisors is an integer number (1047312).

Almost surely, 2^12499744 is an apocalyptic number.

It is an amenable number.

12499744 is an abundant number, since it is smaller than the sum of its proper divisors (12635744).

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

12499744 is an equidigital number, since it uses as much as digits as its factorization.

12499744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8368 (or 8360 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 12499744 is about 3535.4977018802. The cubic root of 12499744 is about 232.0778573408.

The spelling of 12499744 in words is "twelve million, four hundred ninety-nine thousand, seven hundred forty-four".