13980276 has 72 divisors (see below), whose sum is σ = 38627680. Its totient is φ = 4408992.

The previous prime is 13980269. The next prime is 13980277. The reversal of 13980276 is 67208931.

13980276 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 13980276.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13980277) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18090 + ... + 18846.

Almost surely, 2^13980276 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 13980276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19313840).

13980276 is an abundant number, since it is smaller than the sum of its proper divisors (24647404).

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

13980276 is a wasteful number, since it uses less digits than its factorization.

13980276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795 (or 781 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 13980276 is about 3739.0207274098. The cubic root of 13980276 is about 240.9009883506.

The spelling of 13980276 in words is "thirteen million, nine hundred eighty thousand, two hundred seventy-six".