22442443 has 4 divisors (see below), whose sum is σ = 22455360. Its totient is φ = 22429528.

The previous prime is 22442423. The next prime is 22442467. The reversal of 22442443 is 34424422.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22442443 - 2⁹ = 22441931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22442423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3355 + ... + 7492.

It is an arithmetic number, because the mean of its divisors is an integer number (5613840).

Almost surely, 2^22442443 is an apocalyptic number.

22442443 is a deficient number, since it is larger than the sum of its proper divisors (12917).

22442443 is a wasteful number, since it uses less digits than its factorization.

22442443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12916.

The product of its digits is 6144, while the sum is 25.

The square root of 22442443 is about 4737.3455647651. The cubic root of 22442443 is about 282.0698777255.

Adding to 22442443 its reverse (34424422), we get a palindrome (56866865).

The spelling of 22442443 in words is "twenty-two million, four hundred forty-two thousand, four hundred forty-three".