13321044 has 48 divisors (see below), whose sum is σ = 37679040. Its totient is φ = 4036320.

The previous prime is 13321027. The next prime is 13321051. The reversal of 13321044 is 44012331.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4419 + ... + 6794.

It is an arithmetic number, because the mean of its divisors is an integer number (784980).

Almost surely, 2^13321044 is an apocalyptic number.

It is an amenable number.

13321044 is an abundant number, since it is smaller than the sum of its proper divisors (24357996).

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

13321044 is a wasteful number, since it uses less digits than its factorization.

13321044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11237 (or 11229 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 13321044 is about 3649.8005424954. The cubic root of 13321044 is about 237.0533448259.

Adding to 13321044 its reverse (44012331), we get a palindrome (57333375).

The spelling of 13321044 in words is "thirteen million, three hundred twenty-one thousand, forty-four".