13980288 has 96 divisors (see below), whose sum is σ = 43256160. Its totient is φ = 3988992.

The previous prime is 13980277. The next prime is 13980311. The reversal of 13980288 is 88208931.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18445 + ... + 19187.

It is an arithmetic number, because the mean of its divisors is an integer number (450585).

Almost surely, 2^13980288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13980288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21628080).

13980288 is an abundant number, since it is smaller than the sum of its proper divisors (29275872).

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

13980288 is an equidigital number, since it uses as much as digits as its factorization.

13980288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774 (or 755 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 13980288 is about 3739.0223321077. The cubic root of 13980288 is about 240.9010572766.

The spelling of 13980288 in words is "thirteen million, nine hundred eighty thousand, two hundred eighty-eight".