13444445 has 16 divisors (see below), whose sum is σ = 18517248. Its totient is φ = 9179520.

The previous prime is 13444373. The next prime is 13444469. The reversal of 13444445 is 54444431.

It is not a de Polignac number, because 13444445 - 2¹⁴ = 13428061 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9152 + ... + 10518.

It is an arithmetic number, because the mean of its divisors is an integer number (1157328).

Almost surely, 2^13444445 is an apocalyptic number.

It is an amenable number.

13444445 is a deficient number, since it is larger than the sum of its proper divisors (5072803).

13444445 is a wasteful number, since it uses less digits than its factorization.

13444445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1660.

The product of its digits is 15360, while the sum is 29.

The square root of 13444445 is about 3666.6667424242. Note that the first 3 decimals coincide. The cubic root of 13444445 is about 237.7830862662.

Adding to 13444445 its reverse (54444431), we get a palindrome (67888876).

The spelling of 13444445 in words is "thirteen million, four hundred forty-four thousand, four hundred forty-five".