13790920 has 64 divisors (see below), whose sum is σ = 36469440. Its totient is φ = 4627200.

The previous prime is 13790911. The next prime is 13790923. The reversal of 13790920 is 2909731.

13790920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13790923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4515 + ... + 6925.

It is an arithmetic number, because the mean of its divisors is an integer number (569835).

Almost surely, 2^13790920 is an apocalyptic number.

13790920 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 13790920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18234720).

13790920 is an abundant number, since it is smaller than the sum of its proper divisors (22678520).

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

13790920 is a wasteful number, since it uses less digits than its factorization.

13790920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2446 (or 2442 counting only the distinct ones).

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 13790920 is about 3713.6127961865. The cubic root of 13790920 is about 239.8084119139.

The spelling of 13790920 in words is "thirteen million, seven hundred ninety thousand, nine hundred twenty".