12544816 has 40 divisors (see below), whose sum is σ = 25154640. Its totient is φ = 6057984.

The previous prime is 12544799. The next prime is 12544843. The reversal of 12544816 is 61844521.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91500 + ... + 91636.

It is an arithmetic number, because the mean of its divisors is an integer number (628866).

Almost surely, 2^12544816 is an apocalyptic number.

12544816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12544816 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

12544816 is a wasteful number, since it uses less digits than its factorization.

12544816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301 (or 295 counting only the distinct ones).

The product of its digits is 7680, while the sum is 31.

The square root of 12544816 is about 3541.8661747728. The cubic root of 12544816 is about 232.3564674658.

The spelling of 12544816 in words is "twelve million, five hundred forty-four thousand, eight hundred sixteen".