22612244 has 24 divisors (see below), whose sum is σ = 42071400. Its totient is φ = 10597376.

The previous prime is 22612241. The next prime is 22612253. The reversal of 22612244 is 44221622.

It can be written as a sum of positive squares in 4 ways, for example, as 5290000 + 17322244 = 2300^2 + 4162^2 .

It is a super-2 number, since 2×22612244² = 1022627157431072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22612241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21032 + ... + 22080.

It is an arithmetic number, because the mean of its divisors is an integer number (1752975).

Almost surely, 2^22612244 is an apocalyptic number.

It is an amenable number.

22612244 is a deficient number, since it is larger than the sum of its proper divisors (19459156).

22612244 is a wasteful number, since it uses less digits than its factorization.

22612244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387 (or 1385 counting only the distinct ones).

The product of its digits is 1536, while the sum is 23.

The square root of 22612244 is about 4755.2333276086. The cubic root of 22612244 is about 282.7794775134.

Adding to 22612244 its reverse (44221622), we get a palindrome (66833866).

The spelling of 22612244 in words is "twenty-two million, six hundred twelve thousand, two hundred forty-four".