13444321 has 8 divisors (see below), whose sum is σ = 14694624. Its totient is φ = 12198720.

The previous prime is 13444307. The next prime is 13444367. The reversal of 13444321 is 12344431.

13444321 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13444321 - 2⁹ = 13443809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13444292 and 13444301.

It is not an unprimeable number, because it can be changed into a prime (13444621) 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 7 ways as a sum of consecutive naturals, for example, 7881 + ... + 9433.

It is an arithmetic number, because the mean of its divisors is an integer number (1836828).

Almost surely, 2^13444321 is an apocalyptic number.

13444321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13444321 is a deficient number, since it is larger than the sum of its proper divisors (1250303).

13444321 is a wasteful number, since it uses less digits than its factorization.

13444321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2351.

The product of its digits is 1152, while the sum is 22.

The square root of 13444321 is about 3666.6498332947. The cubic root of 13444321 is about 237.7823552284.

Adding to 13444321 its reverse (12344431), we get a palindrome (25788752).

It can be divided in two parts, 1344 and 4321, that added together give a palindrome (5665).

The spelling of 13444321 in words is "thirteen million, four hundred forty-four thousand, three hundred twenty-one".