22238443 has 4 divisors (see below), whose sum is σ = 22839520. Its totient is φ = 21637368.

The previous prime is 22238413. The next prime is 22238459. The reversal of 22238443 is 34483222.

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 22238443 - 2¹³ = 22230251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22238413) 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, 300483 + ... + 300556.

It is an arithmetic number, because the mean of its divisors is an integer number (5709880).

Almost surely, 2^22238443 is an apocalyptic number.

22238443 is a deficient number, since it is larger than the sum of its proper divisors (601077).

22238443 is an equidigital number, since it uses as much as digits as its factorization.

22238443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601076.

The product of its digits is 9216, while the sum is 28.

The square root of 22238443 is about 4715.7653673608. The cubic root of 22238443 is about 281.2126107993.

The spelling of 22238443 in words is "twenty-two million, two hundred thirty-eight thousand, four hundred forty-three".