14999980 has 24 divisors (see below), whose sum is σ = 31589712. Its totient is φ = 5982912.

The previous prime is 14999977. The next prime is 14999981. The reversal of 14999980 is 8999941.

14999980 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 (14999981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8014 + ... + 9706.

It is an arithmetic number, because the mean of its divisors is an integer number (1316238).

Almost surely, 2^14999980 is an apocalyptic number.

14999980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14999980 is an abundant number, since it is smaller than the sum of its proper divisors (16589732).

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

14999980 is a wasteful number, since it uses less digits than its factorization.

14999980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2145 (or 2143 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 49.

The square root of 14999980 is about 3872.9807642177. The cubic root of 14999980 is about 246.6210978236.

The spelling of 14999980 in words is "fourteen million, nine hundred ninety-nine thousand, nine hundred eighty".