13888436 has 12 divisors (see below), whose sum is σ = 24384612. Its totient is φ = 6921408.

The previous prime is 13888421. The next prime is 13888447. The reversal of 13888436 is 63488831.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4622500 + 9265936 = 2150^2 + 3044^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13888393 and 13888402.

It is a congruent number.

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, 4295 + ... + 6798.

It is an arithmetic number, because the mean of its divisors is an integer number (2032051).

Almost surely, 2^13888436 is an apocalyptic number.

It is an amenable number.

13888436 is a deficient number, since it is larger than the sum of its proper divisors (10496176).

13888436 is a wasteful number, since it uses less digits than its factorization.

13888436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11410 (or 11408 counting only the distinct ones).

The product of its digits is 110592, while the sum is 41.

The square root of 13888436 is about 3726.7192005838. The cubic root of 13888436 is about 240.3723156409.

The spelling of 13888436 in words is "thirteen million, eight hundred eighty-eight thousand, four hundred thirty-six".