13668012 has 18 divisors (see below), whose sum is σ = 34549788. Its totient is φ = 4555992.

The previous prime is 13668007. The next prime is 13668029. The reversal of 13668012 is 21086631.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 189798 + ... + 189869.

Almost surely, 2^13668012 is an apocalyptic number.

13668012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13668012 is an abundant number, since it is smaller than the sum of its proper divisors (20881776).

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

13668012 is a wasteful number, since it uses less digits than its factorization.

13668012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379677 (or 379672 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 13668012 is about 3697.0274545911. The cubic root of 13668012 is about 239.0938748774.

The spelling of 13668012 in words is "thirteen million, six hundred sixty-eight thousand, twelve".