13242222 has 24 divisors (see below), whose sum is σ = 32790576. Its totient is φ = 3783456.

The previous prime is 13242199. The next prime is 13242253. The reversal of 13242222 is 22224231.

It is a Harshad number since it is a multiple of its sum of digits (18).

13242222 is a modest number, since divided by 2222 gives 1324 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 13242195 and 13242204.

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 11 ways as a sum of consecutive naturals, for example, 52423 + ... + 52674.

It is an arithmetic number, because the mean of its divisors is an integer number (1366274).

Almost surely, 2^13242222 is an apocalyptic number.

13242222 is an abundant number, since it is smaller than the sum of its proper divisors (19548354).

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

13242222 is a wasteful number, since it uses less digits than its factorization.

13242222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105112 (or 105109 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 13242222 is about 3638.9863973365. The cubic root of 13242222 is about 236.5848631737.

Adding to 13242222 its reverse (22224231), we get a palindrome (35466453).

Subtracting 13242222 from its reverse (22224231), we obtain a square (8982009 = 2997²).

The spelling of 13242222 in words is "thirteen million, two hundred forty-two thousand, two hundred twenty-two".