13682556 has 18 divisors (see below), whose sum is σ = 34586552. Its totient is φ = 4560840.

The previous prime is 13682551. The next prime is 13682573. The reversal of 13682556 is 65528631.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 380071 = 13682556 / (1 + 3 + 6 + 8 + 2 + 5 + 5 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 13682556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13682551) 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 5 ways as a sum of consecutive naturals, for example, 190000 + ... + 190071.

Almost surely, 2^13682556 is an apocalyptic number.

It is an amenable number.

13682556 is an abundant number, since it is smaller than the sum of its proper divisors (20903996).

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

13682556 is a wasteful number, since it uses less digits than its factorization.

13682556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380081 (or 380076 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 13682556 is about 3698.9939172699. The cubic root of 13682556 is about 239.1786506451.

The spelling of 13682556 in words is "thirteen million, six hundred eighty-two thousand, five hundred fifty-six".