13443222 has 64 divisors (see below), whose sum is σ = 31288320. Its totient is φ = 3815424.

The previous prime is 13443217. The next prime is 13443239. The reversal of 13443222 is 22234431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69558 + ... + 69750.

It is an arithmetic number, because the mean of its divisors is an integer number (488880).

Almost surely, 2^13443222 is an apocalyptic number.

It is a pronic number, being equal to 3666×3667.

It is a practical number, because each smaller number is the sum of distinct divisors of 13443222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15644160).

13443222 is an abundant number, since it is smaller than the sum of its proper divisors (17845098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13443222 is a wasteful number, since it uses less digits than its factorization.

13443222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277.

The product of its digits is 1152, while the sum is 21.

The square root of 13443222 is about 3666.4999659075. The cubic root of 13443222 is about 237.7758759144.

Adding to 13443222 its reverse (22234431), we get a palindrome (35677653).

The spelling of 13443222 in words is "thirteen million, four hundred forty-three thousand, two hundred twenty-two".