13910520 has 128 divisors (see below), whose sum is σ = 46347840. Its totient is φ = 3317760.

The previous prime is 13910503. The next prime is 13910531. The reversal of 13910520 is 2501931.

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 31 ways as a sum of consecutive naturals, for example, 57600 + ... + 57840.

Almost surely, 2^13910520 is an apocalyptic number.

13910520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13910520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23173920).

13910520 is an abundant number, since it is smaller than the sum of its proper divisors (32437320).

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

13910520 is a wasteful number, since it uses less digits than its factorization.

13910520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305 (or 301 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 13910520 is about 3729.6809515024. The cubic root of 13910520 is about 240.4996534992.

The spelling of 13910520 in words is "thirteen million, nine hundred ten thousand, five hundred twenty".