12999824 has 40 divisors (see below), whose sum is σ = 26248320. Its totient is φ = 6232448.

The previous prime is 12999799. The next prime is 12999863. The reversal of 12999824 is 42899921.

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, 44222 + ... + 44514.

It is an arithmetic number, because the mean of its divisors is an integer number (656208).

Almost surely, 2^12999824 is an apocalyptic number.

It is an amenable number.

12999824 is an abundant number, since it is smaller than the sum of its proper divisors (13248496).

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

12999824 is a wasteful number, since it uses less digits than its factorization.

12999824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407 (or 401 counting only the distinct ones).

The product of its digits is 93312, while the sum is 44.

The square root of 12999824 is about 3605.5268685727. The cubic root of 12999824 is about 235.1324076521.

The spelling of 12999824 in words is "twelve million, nine hundred ninety-nine thousand, eight hundred twenty-four".