13570880 has 28 divisors (see below), whose sum is σ = 32316420. Its totient is φ = 5428224.

The previous prime is 13570849. The next prime is 13570903. The reversal of 13570880 is 8807531.

It can be written as a sum of positive squares in 2 ways, for example, as 7139584 + 6431296 = 2672^2 + 2536^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20885 + ... + 21524.

Almost surely, 2^13570880 is an apocalyptic number.

13570880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13570880 is an abundant number, since it is smaller than the sum of its proper divisors (18745540).

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

13570880 is an equidigital number, since it uses as much as digits as its factorization.

13570880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42426 (or 42416 counting only the distinct ones).

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

The square root of 13570880 is about 3683.8675329061. The cubic root of 13570880 is about 238.5261527723.

The spelling of 13570880 in words is "thirteen million, five hundred seventy thousand, eight hundred eighty".