13801636 has 12 divisors (see below), whose sum is σ = 24338160. Its totient is φ = 6847880.

The previous prime is 13801621. The next prime is 13801661. The reversal of 13801636 is 63610831.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12646 + ... + 13693.

It is an arithmetic number, because the mean of its divisors is an integer number (2028180).

Almost surely, 2^13801636 is an apocalyptic number.

It is an amenable number.

13801636 is a deficient number, since it is larger than the sum of its proper divisors (10536524).

13801636 is a wasteful number, since it uses less digits than its factorization.

13801636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26474 (or 26472 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 13801636 is about 3715.0553158735. The cubic root of 13801636 is about 239.8705088498.

The spelling of 13801636 in words is "thirteen million, eight hundred one thousand, six hundred thirty-six".