13580660 has 12 divisors (see below), whose sum is σ = 28519428. Its totient is φ = 5432256.

The previous prime is 13580659. The next prime is 13580663. The reversal of 13580660 is 6608531.

It can be written as a sum of positive squares in 2 ways, for example, as 1567504 + 12013156 = 1252^2 + 3466^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13580663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339497 + ... + 339536.

It is an arithmetic number, because the mean of its divisors is an integer number (2376619).

Almost surely, 2^13580660 is an apocalyptic number.

13580660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13580660 is an abundant number, since it is smaller than the sum of its proper divisors (14938768).

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

13580660 is a wasteful number, since it uses less digits than its factorization.

13580660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679042 (or 679040 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 13580660 is about 3685.1947031331. The cubic root of 13580660 is about 238.5834378223.

The spelling of 13580660 in words is "thirteen million, five hundred eighty thousand, six hundred sixty".