22238735 has 4 divisors (see below), whose sum is σ = 26686488. Its totient is φ = 17790984.

The previous prime is 22238731. The next prime is 22238743. The reversal of 22238735 is 53783222.

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 22238735 - 2² = 22238731 is a prime.

It is a super-2 number, since 2×22238735² = 989122668800450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22238731) 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 3 ways as a sum of consecutive naturals, for example, 2223869 + ... + 2223878.

It is an arithmetic number, because the mean of its divisors is an integer number (6671622).

Almost surely, 2^22238735 is an apocalyptic number.

22238735 is a deficient number, since it is larger than the sum of its proper divisors (4447753).

22238735 is an equidigital number, since it uses as much as digits as its factorization.

22238735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4447752.

The product of its digits is 20160, while the sum is 32.

The square root of 22238735 is about 4715.7963272389. The cubic root of 22238735 is about 281.2138416067.

The spelling of 22238735 in words is "twenty-two million, two hundred thirty-eight thousand, seven hundred thirty-five".