13668672 has 28 divisors (see below), whose sum is σ = 36165536. Its totient is φ = 4556160.

The previous prime is 13668661. The next prime is 13668679. The reversal of 13668672 is 27686631.

It is a self number, because there is not a number n which added to its sum of digits gives 13668672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13668679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35404 + ... + 35787.

Almost surely, 2^13668672 is an apocalyptic number.

13668672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13668672 is an abundant number, since it is smaller than the sum of its proper divisors (22496864).

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

13668672 is an equidigital number, since it uses as much as digits as its factorization.

13668672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71206 (or 71196 counting only the distinct ones).

The product of its digits is 72576, while the sum is 39.

The square root of 13668672 is about 3697.1167144141. The cubic root of 13668672 is about 239.0977232648.

The spelling of 13668672 in words is "thirteen million, six hundred sixty-eight thousand, six hundred seventy-two".