13803636 has 48 divisors (see below), whose sum is σ = 40158720. Its totient is φ = 3585120.

The previous prime is 13803631. The next prime is 13803653. The reversal of 13803636 is 63630831.

13803636 is a modest number, since divided by 3636 gives 1380 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13803631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6546 + ... + 8393.

It is an arithmetic number, because the mean of its divisors is an integer number (836640).

Almost surely, 2^13803636 is an apocalyptic number.

It is an amenable number.

13803636 is an abundant number, since it is smaller than the sum of its proper divisors (26355084).

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

13803636 is a wasteful number, since it uses less digits than its factorization.

13803636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14964 (or 14962 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 13803636 is about 3715.3244811187. The cubic root of 13803636 is about 239.8820948638.

The spelling of 13803636 in words is "thirteen million, eight hundred three thousand, six hundred thirty-six".