13638808 has 32 divisors (see below), whose sum is σ = 27442800. Its totient is φ = 6334848.

The previous prime is 13638799. The next prime is 13638817. The reversal of 13638808 is 80883631.

It is an interprime number because it is at equal distance from previous prime (13638799) and next prime (13638817).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7210 + ... + 8902.

Almost surely, 2^13638808 is an apocalyptic number.

It is an amenable number.

13638808 is an abundant number, since it is smaller than the sum of its proper divisors (13803992).

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

13638808 is a wasteful number, since it uses less digits than its factorization.

13638808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1771 (or 1767 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 13638808 is about 3693.0756829505. The cubic root of 13638808 is about 238.9234653956.

The spelling of 13638808 in words is "thirteen million, six hundred thirty-eight thousand, eight hundred eight".