13904226 has 48 divisors (see below), whose sum is σ = 34691904. Its totient is φ = 3942432.

The previous prime is 13904201. The next prime is 13904263. The reversal of 13904226 is 62240931.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13904226.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20200 + ... + 20876.

It is an arithmetic number, because the mean of its divisors is an integer number (722748).

Almost surely, 2^13904226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13904226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17345952).

13904226 is an abundant number, since it is smaller than the sum of its proper divisors (20787678).

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

13904226 is a wasteful number, since it uses less digits than its factorization.

13904226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855 (or 852 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 13904226 is about 3728.8370841323. The cubic root of 13904226 is about 240.4633756036.

The spelling of 13904226 in words is "thirteen million, nine hundred four thousand, two hundred twenty-six".