13726836 has 18 divisors (see below), whose sum is σ = 34698482. Its totient is φ = 4575600.

The previous prime is 13726781. The next prime is 13726849. The reversal of 13726836 is 63862731.

It is a happy number.

13726836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 12916836 + 810000 = 3594^2 + 900^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 381301 = 13726836 / (1 + 3 + 7 + 2 + 6 + 8 + 3 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 13726836.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 190615 + ... + 190686.

Almost surely, 2^13726836 is an apocalyptic number.

It is an amenable number.

13726836 is an abundant number, since it is smaller than the sum of its proper divisors (20971646).

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

13726836 is a wasteful number, since it uses less digits than its factorization.

13726836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381311 (or 381306 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 13726836 is about 3704.9744938393. The cubic root of 13726836 is about 239.4363857820.

The spelling of 13726836 in words is "thirteen million, seven hundred twenty-six thousand, eight hundred thirty-six".