14439980 has 24 divisors (see below), whose sum is σ = 30754080. Its totient is φ = 5694080.

The previous prime is 14439973. The next prime is 14440001. The reversal of 14439980 is 8993441.

14439980 = 1340² + 1341² + ... + 1347².

14439980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 3665 + ... + 6504.

It is an arithmetic number, because the mean of its divisors is an integer number (1281420).

Almost surely, 2^14439980 is an apocalyptic number.

14439980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14439980 is an abundant number, since it is smaller than the sum of its proper divisors (16314100).

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

14439980 is a wasteful number, since it uses less digits than its factorization.

14439980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10249 (or 10247 counting only the distinct ones).

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

The square root of 14439980 is about 3799.9973684201. The cubic root of 14439980 is about 243.5130258792.

The spelling of 14439980 in words is "fourteen million, four hundred thirty-nine thousand, nine hundred eighty".