13285836 has 24 divisors (see below), whose sum is σ = 34445040. Its totient is φ = 4428576.

The previous prime is 13285817. The next prime is 13285841. The reversal of 13285836 is 63858231.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 13285836.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61401 + ... + 61616.

It is an arithmetic number, because the mean of its divisors is an integer number (1435210).

Almost surely, 2^13285836 is an apocalyptic number.

It is an amenable number.

13285836 is an abundant number, since it is smaller than the sum of its proper divisors (21159204).

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

13285836 is a wasteful number, since it uses less digits than its factorization.

13285836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123030 (or 123022 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 13285836 is about 3644.9740739819. The cubic root of 13285836 is about 236.8443137104.

The spelling of 13285836 in words is "thirteen million, two hundred eighty-five thousand, eight hundred thirty-six".