13424441 has 4 divisors (see below), whose sum is σ = 14214132. Its totient is φ = 12634752.

The previous prime is 13424429. The next prime is 13424443. The reversal of 13424441 is 14442431.

It is a happy number.

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 7645225 + 5779216 = 2765^2 + 2404^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13424441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13424443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394820 + ... + 394853.

It is an arithmetic number, because the mean of its divisors is an integer number (3553533).

Almost surely, 2^13424441 is an apocalyptic number.

It is an amenable number.

13424441 is a deficient number, since it is larger than the sum of its proper divisors (789691).

13424441 is an equidigital number, since it uses as much as digits as its factorization.

13424441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789690.

The product of its digits is 1536, while the sum is 23.

The square root of 13424441 is about 3663.9379088625. The cubic root of 13424441 is about 237.6650951818.

Adding to 13424441 its reverse (14442431), we get a palindrome (27866872).

The spelling of 13424441 in words is "thirteen million, four hundred twenty-four thousand, four hundred forty-one".