13103444 has 12 divisors (see below), whose sum is σ = 22956864. Its totient is φ = 6544344.

The previous prime is 13103443. The next prime is 13103509. The reversal of 13103444 is 44430131.

It is a happy number.

It is a super-2 number, since 2×13103444² = 343400489322272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13103443) 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 3 ways as a sum of consecutive naturals, for example, 4847 + ... + 7049.

It is an arithmetic number, because the mean of its divisors is an integer number (1913072).

Almost surely, 2^13103444 is an apocalyptic number.

It is an amenable number.

13103444 is a deficient number, since it is larger than the sum of its proper divisors (9853420).

13103444 is a wasteful number, since it uses less digits than its factorization.

13103444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3694 (or 3692 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 13103444 is about 3619.8679533928. The cubic root of 13103444 is about 235.7554922407.

Adding to 13103444 its reverse (44430131), we get a palindrome (57533575).

The spelling of 13103444 in words is "thirteen million, one hundred three thousand, four hundred forty-four".