12881824 has 24 divisors (see below), whose sum is σ = 25794720. Its totient is φ = 6330816.

The previous prime is 12881789. The next prime is 12881839. The reversal of 12881824 is 42818821.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 12881824.

It is a congruent number.

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, 1524 + ... + 5299.

It is an arithmetic number, because the mean of its divisors is an integer number (1074780).

Almost surely, 2^12881824 is an apocalyptic number.

It is an amenable number.

12881824 is an abundant number, since it is smaller than the sum of its proper divisors (12912896).

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

12881824 is an equidigital number, since it uses as much as digits as its factorization.

12881824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6892 (or 6884 counting only the distinct ones).

The product of its digits is 8192, while the sum is 34.

The square root of 12881824 is about 3589.1257988541. The cubic root of 12881824 is about 234.4188082614.

The spelling of 12881824 in words is "twelve million, eight hundred eighty-one thousand, eight hundred twenty-four".