13087580 has 96 divisors (see below), whose sum is σ = 32901120. Its totient is φ = 4320000.

The previous prime is 13087559. The next prime is 13087583. The reversal of 13087580 is 8578031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13087583) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129530 + ... + 129630.

It is an arithmetic number, because the mean of its divisors is an integer number (342720).

Almost surely, 2^13087580 is an apocalyptic number.

13087580 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 13087580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16450560).

13087580 is an abundant number, since it is smaller than the sum of its proper divisors (19813540).

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

13087580 is a wasteful number, since it uses less digits than its factorization.

13087580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 13087580 is about 3617.6760496208. The cubic root of 13087580 is about 235.6603127988.

It can be divided in two parts, 1308 and 7580, that added together give a palindrome (8888).

The spelling of 13087580 in words is "thirteen million, eighty-seven thousand, five hundred eighty".