13556426 has 8 divisors (see below), whose sum is σ = 21898884. Its totient is φ = 6256800.

The previous prime is 13556419. The next prime is 13556437. The reversal of 13556426 is 62465531.

It can be written as a sum of positive squares in 2 ways, for example, as 9616201 + 3940225 = 3101^2 + 1985^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 13556392 and 13556401.

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, 260675 + ... + 260726.

Almost surely, 2^13556426 is an apocalyptic number.

13556426 is a deficient number, since it is larger than the sum of its proper divisors (8342458).

13556426 is a wasteful number, since it uses less digits than its factorization.

13556426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521416.

The product of its digits is 21600, while the sum is 32.

The square root of 13556426 is about 3681.9052133372. The cubic root of 13556426 is about 238.4414399721.

The spelling of 13556426 in words is "thirteen million, five hundred fifty-six thousand, four hundred twenty-six".