12881624 has 32 divisors (see below), whose sum is σ = 28354080. Its totient is φ = 5370624.

The previous prime is 12881599. The next prime is 12881629. The reversal of 12881624 is 42618821.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12881629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1037 + ... + 5180.

It is an arithmetic number, because the mean of its divisors is an integer number (886065).

Almost surely, 2^12881624 is an apocalyptic number.

12881624 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12881624 is an abundant number, since it is smaller than the sum of its proper divisors (15472456).

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

12881624 is a wasteful number, since it uses less digits than its factorization.

12881624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6267 (or 6263 counting only the distinct ones).

The product of its digits is 6144, while the sum is 32.

The square root of 12881624 is about 3589.0979368081. The cubic root of 12881624 is about 234.4175950791.

The spelling of 12881624 in words is "twelve million, eight hundred eighty-one thousand, six hundred twenty-four".