13399226 has 4 divisors (see below), whose sum is σ = 20098842. Its totient is φ = 6699612.

The previous prime is 13399207. The next prime is 13399229. The reversal of 13399226 is 62299331.

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

It can be written as a sum of positive squares in only one way, i.e., 9616201 + 3783025 = 3101^2 + 1945^2 .

It is not an unprimeable number, because it can be changed into a prime (13399229) by changing a digit.

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 as a sum of consecutive naturals, namely, 3349805 + ... + 3349808.

Almost surely, 2^13399226 is an apocalyptic number.

13399226 is a deficient number, since it is larger than the sum of its proper divisors (6699616).

13399226 is an equidigital number, since it uses as much as digits as its factorization.

13399226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6699615.

The product of its digits is 17496, while the sum is 35.

The square root of 13399226 is about 3660.4953216744. The cubic root of 13399226 is about 237.5162005569.

The spelling of 13399226 in words is "thirteen million, three hundred ninety-nine thousand, two hundred twenty-six".