13444456 has 8 divisors (see below), whose sum is σ = 25208370. Its totient is φ = 6722224.

The previous prime is 13444373. The next prime is 13444469. The reversal of 13444456 is 65444431.

It can be written as a sum of positive squares in only one way, i.e., 13439556 + 4900 = 3666^2 + 70^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 10.

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 as a sum of consecutive naturals, namely, 840271 + ... + 840286.

Almost surely, 2^13444456 is an apocalyptic number.

It is an amenable number.

13444456 is a deficient number, since it is larger than the sum of its proper divisors (11763914).

13444456 is a wasteful number, since it uses less digits than its factorization.

13444456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680563 (or 1680559 counting only the distinct ones).

The product of its digits is 23040, while the sum is 31.

The square root of 13444456 is about 3666.6682424239. The cubic root of 13444456 is about 237.7831511161.

Adding to 13444456 its reverse (65444431), we get a palindrome (78888887).

The spelling of 13444456 in words is "thirteen million, four hundred forty-four thousand, four hundred fifty-six".