22244 has 12 divisors (see below), whose sum is σ = 39984. Its totient is φ = 10824.

The previous prime is 22229. The next prime is 22247. The reversal of 22244 is 44222.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 9, base 10 and base 15.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (22247) by changing a digit.

22244 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227 + ... + 309.

It is an arithmetic number, because the mean of its divisors is an integer number (3332).

2²²²⁴⁴ is an apocalyptic number.

It is an amenable number.

22244 is a deficient number, since it is larger than the sum of its proper divisors (17740).

22244 is a wasteful number, since it uses less digits than its factorization.

22244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154 (or 152 counting only the distinct ones).

The product of its digits is 128, while the sum is 14.

The square root of 22244 is about 149.1442255000. The cubic root of 22244 is about 28.1236032228.

Adding to 22244 its reverse (44222), we get a palindrome (66466).

The spelling of 22244 in words is "twenty-two thousand, two hundred forty-four", and thus it is an iban number.