13965980 has 36 divisors (see below), whose sum is σ = 34119288. Its totient is φ = 4788000.

The previous prime is 13965967. The next prime is 13965989. The reversal of 13965980 is 8956931.

13965980 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 not an unprimeable number, because it can be changed into a prime (13965989) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6146 + ... + 8105.

It is an arithmetic number, because the mean of its divisors is an integer number (947758).

Almost surely, 2^13965980 is an apocalyptic number.

13965980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13965980 is an abundant number, since it is smaller than the sum of its proper divisors (20153308).

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

13965980 is a wasteful number, since it uses less digits than its factorization.

13965980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14274 (or 14265 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 13965980 is about 3737.1085079243. The cubic root of 13965980 is about 240.8188465509.

The spelling of 13965980 in words is "thirteen million, nine hundred sixty-five thousand, nine hundred eighty".