13444345 has 4 divisors (see below), whose sum is σ = 16133220. Its totient is φ = 10755472.

The previous prime is 13444307. The next prime is 13444367. The reversal of 13444345 is 54344431.

13444345 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3069504 + 10374841 = 1752^2 + 3221^2 .

It is a cyclic number.

It is not a de Polignac number, because 13444345 - 2¹³ = 13436153 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 1344430 + ... + 1344439.

It is an arithmetic number, because the mean of its divisors is an integer number (4033305).

Almost surely, 2^13444345 is an apocalyptic number.

It is an amenable number.

13444345 is a deficient number, since it is larger than the sum of its proper divisors (2688875).

13444345 is an equidigital number, since it uses as much as digits as its factorization.

13444345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2688874.

The product of its digits is 11520, while the sum is 28.

The square root of 13444345 is about 3666.6531060355. The cubic root of 13444345 is about 237.7824967199.

Adding to 13444345 its reverse (54344431), we get a palindrome (67788776).

The spelling of 13444345 in words is "thirteen million, four hundred forty-four thousand, three hundred forty-five".