13856790 has 32 divisors (see below), whose sum is σ = 33418080. Its totient is φ = 3677184.

The previous prime is 13856789. The next prime is 13856831. The reversal of 13856790 is 9765831.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5862 + ... + 7878.

It is an arithmetic number, because the mean of its divisors is an integer number (1044315).

Almost surely, 2^13856790 is an apocalyptic number.

13856790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13856790 is an abundant number, since it is smaller than the sum of its proper divisors (19561290).

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

13856790 is a wasteful number, since it uses less digits than its factorization.

13856790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2256.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 13856790 is about 3722.4709535469. The cubic root of 13856790 is about 240.1896071098.

The spelling of 13856790 in words is "thirteen million, eight hundred fifty-six thousand, seven hundred ninety".