12499816 has 16 divisors (see below), whose sum is σ = 26785440. Its totient is φ = 5357040.

The previous prime is 12499813. The next prime is 12499867. The reversal of 12499816 is 61899421.

It is not an unprimeable number, because it can be changed into a prime (12499813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111550 + ... + 111661.

It is an arithmetic number, because the mean of its divisors is an integer number (1674090).

Almost surely, 2^12499816 is an apocalyptic number.

It is an amenable number.

12499816 is an abundant number, since it is smaller than the sum of its proper divisors (14285624).

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

12499816 is a wasteful number, since it uses less digits than its factorization.

12499816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223224 (or 223220 counting only the distinct ones).

The product of its digits is 31104, while the sum is 40.

The square root of 12499816 is about 3535.5078843074. The cubic root of 12499816 is about 232.0783029386.

The spelling of 12499816 in words is "twelve million, four hundred ninety-nine thousand, eight hundred sixteen".