13908620 has 48 divisors (see below), whose sum is σ = 32126976. Its totient is φ = 5016000.

The previous prime is 13908619. The next prime is 13908623. The reversal of 13908620 is 2680931.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (13908623) by changing a digit.

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, 41855 + ... + 42185.

It is an arithmetic number, because the mean of its divisors is an integer number (669312).

Almost surely, 2^13908620 is an apocalyptic number.

13908620 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 13908620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16063488).

13908620 is an abundant number, since it is smaller than the sum of its proper divisors (18218356).

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

13908620 is a wasteful number, since it uses less digits than its factorization.

13908620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542 (or 540 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 13908620 is about 3729.4262293280. The cubic root of 13908620 is about 240.4887032699.

The spelling of 13908620 in words is "thirteen million, nine hundred eight thousand, six hundred twenty".