13559444 has 6 divisors (see below), whose sum is σ = 23729034. Its totient is φ = 6779720.

The previous prime is 13559419. The next prime is 13559449. The reversal of 13559444 is 44495531.

It can be written as a sum of positive squares in only one way, i.e., 12816400 + 743044 = 3580^2 + 862^2 .

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13559449) 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 as a sum of consecutive naturals, namely, 1694927 + ... + 1694934.

It is an arithmetic number, because the mean of its divisors is an integer number (3954839).

Almost surely, 2^13559444 is an apocalyptic number.

It is an amenable number.

13559444 is a deficient number, since it is larger than the sum of its proper divisors (10169590).

13559444 is a wasteful number, since it uses less digits than its factorization.

13559444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3389865 (or 3389863 counting only the distinct ones).

The product of its digits is 43200, while the sum is 35.

The square root of 13559444 is about 3682.3150326934. The cubic root of 13559444 is about 238.4591330049.

The spelling of 13559444 in words is "thirteen million, five hundred fifty-nine thousand, four hundred forty-four".