13855236 has 12 divisors (see below), whose sum is σ = 32328912. Its totient is φ = 4618408.

The previous prime is 13855211. The next prime is 13855249. The reversal of 13855236 is 63255831.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 13855197 and 13855206.

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, 577290 + ... + 577313.

It is an arithmetic number, because the mean of its divisors is an integer number (2694076).

Almost surely, 2^13855236 is an apocalyptic number.

It is an amenable number.

13855236 is an abundant number, since it is smaller than the sum of its proper divisors (18473676).

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

13855236 is a wasteful number, since it uses less digits than its factorization.

13855236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154610 (or 1154608 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 13855236 is about 3722.2622153739. The cubic root of 13855236 is about 240.1806279113.

It can be divided in two parts, 1385523 and 6, that multiplied together give a palindrome (8313138).

The spelling of 13855236 in words is "thirteen million, eight hundred fifty-five thousand, two hundred thirty-six".