22423443 has 16 divisors (see below), whose sum is σ = 35093760. Its totient is φ = 12466656.

The previous prime is 22423441. The next prime is 22423463. The reversal of 22423443 is 34432422.

It is not a de Polignac number, because 22423443 - 2¹ = 22423441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22423441) 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 15 ways as a sum of consecutive naturals, for example, 13653 + ... + 15206.

It is an arithmetic number, because the mean of its divisors is an integer number (2193360).

Almost surely, 2^22423443 is an apocalyptic number.

22423443 is a deficient number, since it is larger than the sum of its proper divisors (12670317).

22423443 is a wasteful number, since it uses less digits than its factorization.

22423443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28906.

The product of its digits is 4608, while the sum is 24.

The square root of 22423443 is about 4735.3397977336. The cubic root of 22423443 is about 281.9902541776.

Adding to 22423443 its reverse (34432422), we get a palindrome (56855865).

The spelling of 22423443 in words is "twenty-two million, four hundred twenty-three thousand, four hundred forty-three".