13560720 has 40 divisors (see below), whose sum is σ = 42038976. Its totient is φ = 3616128.

The previous prime is 13560707. The next prime is 13560721. The reversal of 13560720 is 2706531.

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 (24).

It is not an unprimeable number, because it can be changed into a prime (13560721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28012 + ... + 28491.

Almost surely, 2^13560720 is an apocalyptic number.

13560720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13560720 is an abundant number, since it is smaller than the sum of its proper divisors (28478256).

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

13560720 is a wasteful number, since it uses less digits than its factorization.

13560720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56519 (or 56513 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 13560720 is about 3682.4882891871. The cubic root of 13560720 is about 238.4666127686.

The spelling of 13560720 in words is "thirteen million, five hundred sixty thousand, seven hundred twenty".