22343444 has 12 divisors (see below), whose sum is σ = 39364500. Its totient is φ = 11096448.

The previous prime is 22343443. The next prime is 22343459. The reversal of 22343444 is 44434322.

It can be written as a sum of positive squares in 2 ways, for example, as 12180100 + 10163344 = 3490^2 + 3188^2 .

It is a super-2 number, since 2×22343444² = 998458979562272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22343443) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 18149 + ... + 19340.

It is an arithmetic number, because the mean of its divisors is an integer number (3280375).

Almost surely, 2^22343444 is an apocalyptic number.

It is an amenable number.

22343444 is a deficient number, since it is larger than the sum of its proper divisors (17021056).

22343444 is a wasteful number, since it uses less digits than its factorization.

22343444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37642 (or 37640 counting only the distinct ones).

The product of its digits is 9216, while the sum is 26.

The square root of 22343444 is about 4726.8852323703. The cubic root of 22343444 is about 281.6545070592.

Adding to 22343444 its reverse (44434322), we get a palindrome (66777766).

The spelling of 22343444 in words is "twenty-two million, three hundred forty-three thousand, four hundred forty-four".