13668492 has 12 divisors (see below), whose sum is σ = 31893176. Its totient is φ = 4556160.

The previous prime is 13668481. The next prime is 13668497. The reversal of 13668492 is 29486631.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 13668492.

It is not an unprimeable number, because it can be changed into a prime (13668497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 569509 + ... + 569532.

Almost surely, 2^13668492 is an apocalyptic number.

13668492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13668492 is an abundant number, since it is smaller than the sum of its proper divisors (18224684).

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

13668492 is a wasteful number, since it uses less digits than its factorization.

13668492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139048 (or 1139046 counting only the distinct ones).

The product of its digits is 62208, while the sum is 39.

The square root of 13668492 is about 3697.0923710397. The cubic root of 13668492 is about 239.0966737169.

The spelling of 13668492 in words is "thirteen million, six hundred sixty-eight thousand, four hundred ninety-two".