12447424 has 28 divisors (see below), whose sum is σ = 26947368. Its totient is φ = 5657600.

The previous prime is 12447401. The next prime is 12447469. The reversal of 12447424 is 42474421.

It is a junction number, because it is equal to n+sod(n) for n = 12447392 and 12447401.

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, 8137 + ... + 9544.

It is an arithmetic number, because the mean of its divisors is an integer number (962406).

Almost surely, 2^12447424 is an apocalyptic number.

It is an amenable number.

12447424 is an abundant number, since it is smaller than the sum of its proper divisors (14499944).

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

12447424 is a wasteful number, since it uses less digits than its factorization.

12447424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17704 (or 17694 counting only the distinct ones).

The product of its digits is 7168, while the sum is 28.

The square root of 12447424 is about 3528.0907017819. The cubic root of 12447424 is about 231.7536028520.

It can be divided in two parts, 1244 and 7424, that added together give a palindrome (8668).

The spelling of 12447424 in words is "twelve million, four hundred forty-seven thousand, four hundred twenty-four".