22243412 has 24 divisors (see below), whose sum is σ = 41607720. Its totient is φ = 10368000.

The previous prime is 22243393. The next prime is 22243423. The reversal of 22243412 is 21434222.

It can be written as a sum of positive squares in 4 ways, for example, as 8375236 + 13868176 = 2894^2 + 3724^2 .

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5912 + ... + 8912.

It is an arithmetic number, because the mean of its divisors is an integer number (1733655).

Almost surely, 2^22243412 is an apocalyptic number.

It is an amenable number.

22243412 is a deficient number, since it is larger than the sum of its proper divisors (19364308).

22243412 is a wasteful number, since it uses less digits than its factorization.

22243412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3131 (or 3129 counting only the distinct ones).

The product of its digits is 768, while the sum is 20.

The square root of 22243412 is about 4716.2921877254. The cubic root of 22243412 is about 281.2335541330.

Adding to 22243412 its reverse (21434222), we get a palindrome (43677634).

It can be divided in two parts, 222 and 43412, that added together give a palindrome (43634).

The spelling of 22243412 in words is "twenty-two million, two hundred forty-three thousand, four hundred twelve".