12668412 has 24 divisors (see below), whose sum is σ = 29621200. Its totient is φ = 4214016.

The previous prime is 12668399. The next prime is 12668413. The reversal of 12668412 is 21486621.

It is a self number, because there is not a number n which added to its sum of digits gives 12668412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12668413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7764 + ... + 9252.

Almost surely, 2^12668412 is an apocalyptic number.

12668412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12668412 is an abundant number, since it is smaller than the sum of its proper divisors (16952788).

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

12668412 is a wasteful number, since it uses less digits than its factorization.

12668412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2205 (or 2203 counting only the distinct ones).

The product of its digits is 4608, while the sum is 30.

The square root of 12668412 is about 3559.2712737301. The cubic root of 12668412 is about 233.1170612817.

The spelling of 12668412 in words is "twelve million, six hundred sixty-eight thousand, four hundred twelve".