13222442 has 8 divisors (see below), whose sum is σ = 20877600. Its totient is φ = 6263244.

The previous prime is 13222441. The next prime is 13222453. The reversal of 13222442 is 24422231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (13222441) 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, 173942 + ... + 174017.

It is an arithmetic number, because the mean of its divisors is an integer number (2609700).

Almost surely, 2^13222442 is an apocalyptic number.

13222442 is a deficient number, since it is larger than the sum of its proper divisors (7655158).

13222442 is a wasteful number, since it uses less digits than its factorization.

13222442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347980.

The product of its digits is 768, while the sum is 20.

The square root of 13222442 is about 3636.2675919134. The cubic root of 13222442 is about 236.4670083168.

Adding to 13222442 its reverse (24422231), we get a palindrome (37644673).

The spelling of 13222442 in words is "thirteen million, two hundred twenty-two thousand, four hundred forty-two".