13944980 has 24 divisors (see below), whose sum is σ = 33468288. Its totient is φ = 4781088.

The previous prime is 13944979. The next prime is 13945007. The reversal of 13944980 is 8944931.

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, 49664 + ... + 49943.

It is an arithmetic number, because the mean of its divisors is an integer number (1394512).

Almost surely, 2^13944980 is an apocalyptic number.

13944980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13944980 is an abundant number, since it is smaller than the sum of its proper divisors (19523308).

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

13944980 is a wasteful number, since it uses less digits than its factorization.

13944980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99623 (or 99621 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 13944980 is about 3734.2977920889. The cubic root of 13944980 is about 240.6980832710.

The spelling of 13944980 in words is "thirteen million, nine hundred forty-four thousand, nine hundred eighty".