22243450 has 12 divisors (see below), whose sum is σ = 41372910. Its totient is φ = 8897360.

The previous prime is 22243447. The next prime is 22243483. The reversal of 22243450 is 5434222.

It can be written as a sum of positive squares in 3 ways, for example, as 13593969 + 8649481 = 3687^2 + 2941^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 222385 + ... + 222484.

Almost surely, 2^22243450 is an apocalyptic number.

22243450 is a deficient number, since it is larger than the sum of its proper divisors (19129460).

22243450 is a wasteful number, since it uses less digits than its factorization.

22243450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444881 (or 444876 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 22243450 is about 4716.2962163121. The cubic root of 22243450 is about 281.2337142833.

Adding to 22243450 its reverse (5434222), we get a palindrome (27677672).

The spelling of 22243450 in words is "twenty-two million, two hundred forty-three thousand, four hundred fifty".