22105244 has 12 divisors (see below), whose sum is σ = 44210544. Its totient is φ = 9473664.

The previous prime is 22105229. The next prime is 22105249. The reversal of 22105244 is 44250122.

It is a happy number.

22105244 is an admirable number.

It is a super-3 number, since 3×22105244³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22105249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394709 + ... + 394764.

It is an arithmetic number, because the mean of its divisors is an integer number (3684212).

Almost surely, 2^22105244 is an apocalyptic number.

It is an amenable number.

22105244 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22105244 is a wasteful number, since it uses less digits than its factorization.

22105244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789484 (or 789482 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 22105244 is about 4701.6214224457. The cubic root of 22105244 is about 280.6500373492.

Adding to 22105244 its reverse (44250122), we get a palindrome (66355366).

The spelling of 22105244 in words is "twenty-two million, one hundred five thousand, two hundred forty-four".