22320244 has 6 divisors (see below), whose sum is σ = 39060434. Its totient is φ = 11160120.

The previous prime is 22320241. The next prime is 22320251. The reversal of 22320244 is 44202322.

It can be written as a sum of positive squares in only one way, i.e., 19695844 + 2624400 = 4438^2 + 1620^2 .

It is a super-3 number, since 3×22320244³ (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 (22320241) 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 as a sum of consecutive naturals, namely, 2790027 + ... + 2790034.

Almost surely, 2^22320244 is an apocalyptic number.

It is an amenable number.

22320244 is a deficient number, since it is larger than the sum of its proper divisors (16740190).

22320244 is a wasteful number, since it uses less digits than its factorization.

22320244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5580065 (or 5580063 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 22320244 is about 4724.4305476957. The cubic root of 22320244 is about 281.5569893042.

Adding to 22320244 its reverse (44202322), we get a palindrome (66522566).

The spelling of 22320244 in words is "twenty-two million, three hundred twenty thousand, two hundred forty-four".