22352244 has 12 divisors (see below), whose sum is σ = 52155264. Its totient is φ = 7450744.

The previous prime is 22352221. The next prime is 22352249. The reversal of 22352244 is 44225322.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22352249) 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, 931332 + ... + 931355.

It is an arithmetic number, because the mean of its divisors is an integer number (4346272).

Almost surely, 2^22352244 is an apocalyptic number.

It is an amenable number.

22352244 is an abundant number, since it is smaller than the sum of its proper divisors (29803020).

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

22352244 is a wasteful number, since it uses less digits than its factorization.

22352244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1862694 (or 1862692 counting only the distinct ones).

The product of its digits is 3840, while the sum is 24.

The square root of 22352244 is about 4727.8159862668. The cubic root of 22352244 is about 281.6914788937.

Adding to 22352244 its reverse (44225322), we get a palindrome (66577566).

The spelling of 22352244 in words is "twenty-two million, three hundred fifty-two thousand, two hundred forty-four".