13812636 has 24 divisors (see below), whose sum is σ = 34125840. Its totient is φ = 4333312.

The previous prime is 13812607. The next prime is 13812661. The reversal of 13812636 is 63621831.

13812636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 33651 + ... + 34058.

It is an arithmetic number, because the mean of its divisors is an integer number (1421910).

Almost surely, 2^13812636 is an apocalyptic number.

It is an amenable number.

13812636 is an abundant number, since it is smaller than the sum of its proper divisors (20313204).

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

13812636 is a wasteful number, since it uses less digits than its factorization.

13812636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67733 (or 67731 counting only the distinct ones).

The product of its digits is 5184, while the sum is 30.

The square root of 13812636 is about 3716.5354834846. The cubic root of 13812636 is about 239.9342180825.

The spelling of 13812636 in words is "thirteen million, eight hundred twelve thousand, six hundred thirty-six".