13513880 has 64 divisors (see below), whose sum is σ = 32667840. Its totient is φ = 5018112.

The previous prime is 13513873. The next prime is 13513897. The reversal of 13513880 is 8831531.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33842 + ... + 34238.

It is an arithmetic number, because the mean of its divisors is an integer number (510435).

Almost surely, 2^13513880 is an apocalyptic number.

13513880 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 13513880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16333920).

13513880 is an abundant number, since it is smaller than the sum of its proper divisors (19153960).

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

13513880 is a wasteful number, since it uses less digits than its factorization.

13513880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468 (or 464 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 13513880 is about 3676.1229576825. The cubic root of 13513880 is about 238.1917340167.

The spelling of 13513880 in words is "thirteen million, five hundred thirteen thousand, eight hundred eighty".