13222304 has 12 divisors (see below), whose sum is σ = 26031474. Its totient is φ = 6611136.

The previous prime is 13222303. The next prime is 13222327. The reversal of 13222304 is 40322231.

It can be written as a sum of positive squares in only one way, i.e., 9909904 + 3312400 = 3148^2 + 1820^2 .

It is not an unprimeable number, because it can be changed into a prime (13222301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206567 + ... + 206630.

Almost surely, 2^13222304 is an apocalyptic number.

It is an amenable number.

13222304 is a deficient number, since it is larger than the sum of its proper divisors (12809170).

13222304 is an equidigital number, since it uses as much as digits as its factorization.

13222304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413207 (or 413199 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 13222304 is about 3636.2486163627. The cubic root of 13222304 is about 236.4661856609.

Adding to 13222304 its reverse (40322231), we get a palindrome (53544535).

The spelling of 13222304 in words is "thirteen million, two hundred twenty-two thousand, three hundred four".