13044436 has 12 divisors (see below), whose sum is σ = 22866228. Its totient is φ = 6511232.

The previous prime is 13044433. The next prime is 13044439. The reversal of 13044436 is 63444031.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13044433) and next prime (13044439).

It can be written as a sum of positive squares in 2 ways, for example, as 8008900 + 5035536 = 2830^2 + 2244^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13044436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13044433) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 300 + ... + 5116.

It is an arithmetic number, because the mean of its divisors is an integer number (1905519).

Almost surely, 2^13044436 is an apocalyptic number.

It is an amenable number.

13044436 is a deficient number, since it is larger than the sum of its proper divisors (9821792).

13044436 is a wasteful number, since it uses less digits than its factorization.

13044436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5498 (or 5496 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 13044436 is about 3611.7081831178. The cubic root of 13044436 is about 235.4010715577.

Adding to 13044436 its reverse (63444031), we get a palindrome (76488467).

The spelling of 13044436 in words is "thirteen million, forty-four thousand, four hundred thirty-six".