22023234 has 24 divisors (see below), whose sum is σ = 47803392. Its totient is φ = 7327800.

The previous prime is 22023229. The next prime is 22023241. The reversal of 22023234 is 43232022.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18559 + ... + 19709.

It is an arithmetic number, because the mean of its divisors is an integer number (1991808).

Almost surely, 2^22023234 is an apocalyptic number.

22023234 is an abundant number, since it is smaller than the sum of its proper divisors (25780158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22023234 is a wasteful number, since it uses less digits than its factorization.

22023234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2222 (or 2219 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 22023234 is about 4692.8918589714. The cubic root of 22023234 is about 280.3025386370.

Adding to 22023234 its reverse (43232022), we get a palindrome (65255256).

The spelling of 22023234 in words is "twenty-two million, twenty-three thousand, two hundred thirty-four".