13320560 has 40 divisors (see below), whose sum is σ = 33788016. Its totient is φ = 4843520.

The previous prime is 13320557. The next prime is 13320589. The reversal of 13320560 is 6502331.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6689 + ... + 8448.

Almost surely, 2^13320560 is an apocalyptic number.

13320560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13320560 is an abundant number, since it is smaller than the sum of its proper divisors (20467456).

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

13320560 is a wasteful number, since it uses less digits than its factorization.

13320560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15161 (or 15155 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 13320560 is about 3649.7342369000. The cubic root of 13320560 is about 237.0504737995.

Adding to 13320560 its reverse (6502331), we get a palindrome (19822891).

The spelling of 13320560 in words is "thirteen million, three hundred twenty thousand, five hundred sixty".