13213980 has 72 divisors (see below), whose sum is σ = 43173312. Its totient is φ = 3252096.

The previous prime is 13213979. The next prime is 13213999. The reversal of 13213980 is 8931231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 484 + ... + 5163.

Almost surely, 2^13213980 is an apocalyptic number.

13213980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13213980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21586656).

13213980 is an abundant number, since it is smaller than the sum of its proper divisors (29959332).

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

13213980 is a wasteful number, since it uses less digits than its factorization.

13213980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5675 (or 5670 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 13213980 is about 3635.1038499608. The cubic root of 13213980 is about 236.4165534201.

The spelling of 13213980 in words is "thirteen million, two hundred thirteen thousand, nine hundred eighty".