13989560 has 32 divisors (see below), whose sum is σ = 33899040. Its totient is φ = 5165184.

The previous prime is 13989541. The next prime is 13989581. The reversal of 13989560 is 6598931.

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, 12932 + ... + 13971.

It is an arithmetic number, because the mean of its divisors is an integer number (1059345).

Almost surely, 2^13989560 is an apocalyptic number.

13989560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13989560 is an abundant number, since it is smaller than the sum of its proper divisors (19909480).

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

13989560 is a wasteful number, since it uses less digits than its factorization.

13989560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26927 (or 26923 counting only the distinct ones).

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

The square root of 13989560 is about 3740.2620229070. The cubic root of 13989560 is about 240.9543022691.

The spelling of 13989560 in words is "thirteen million, nine hundred eighty-nine thousand, five hundred sixty".