13806420 has 24 divisors (see below), whose sum is σ = 38658144. Its totient is φ = 3681696.

The previous prime is 13806409. The next prime is 13806433. The reversal of 13806420 is 2460831.

It is a happy number.

13806420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114994 + ... + 115113.

It is an arithmetic number, because the mean of its divisors is an integer number (1610756).

Almost surely, 2^13806420 is an apocalyptic number.

13806420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13806420 is an abundant number, since it is smaller than the sum of its proper divisors (24851724).

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

13806420 is a wasteful number, since it uses less digits than its factorization.

13806420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230119 (or 230117 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 13806420 is about 3715.6991266786. The cubic root of 13806420 is about 239.8982207324.

The spelling of 13806420 in words is "thirteen million, eight hundred six thousand, four hundred twenty".