13213244 has 12 divisors (see below), whose sum is σ = 25225368. Its totient is φ = 6006000.

The previous prime is 13213237. The next prime is 13213253. The reversal of 13213244 is 44231231.

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 3 ways as a sum of consecutive naturals, for example, 150107 + ... + 150194.

It is an arithmetic number, because the mean of its divisors is an integer number (2102114).

Almost surely, 2^13213244 is an apocalyptic number.

It is an amenable number.

13213244 is a deficient number, since it is larger than the sum of its proper divisors (12012124).

13213244 is a wasteful number, since it uses less digits than its factorization.

13213244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300316 (or 300314 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 13213244 is about 3635.0026134791. The cubic root of 13213244 is about 236.4121639827.

Adding to 13213244 its reverse (44231231), we get a palindrome (57444475).

The spelling of 13213244 in words is "thirteen million, two hundred thirteen thousand, two hundred forty-four".