22244244 has 48 divisors (see below), whose sum is σ = 57953280. Its totient is φ = 6582240.

The previous prime is 22244227. The next prime is 22244251. The reversal of 22244244 is 44244222.

It is a super-2 number, since 2×22244244² = 989612782263072, which contains 22 as substring.

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

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 15 ways as a sum of consecutive naturals, for example, 3717 + ... + 7635.

It is an arithmetic number, because the mean of its divisors is an integer number (1207360).

Almost surely, 2^22244244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22244244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28976640).

22244244 is an abundant number, since it is smaller than the sum of its proper divisors (35709036).

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

22244244 is a wasteful number, since it uses less digits than its factorization.

22244244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3980 (or 3978 counting only the distinct ones).

The product of its digits is 4096, while the sum is 24.

The square root of 22244244 is about 4716.3803917835. The cubic root of 22244244 is about 281.2370605405.

Adding to 22244244 its reverse (44244222), we get a palindrome (66488466).

The spelling of 22244244 in words is "twenty-two million, two hundred forty-four thousand, two hundred forty-four".