22304233 has 16 divisors (see below), whose sum is σ = 27243520. Its totient is φ = 17834256.

The previous prime is 22304207. The next prime is 22304251. The reversal of 22304233 is 33240322.

It is a cyclic number.

It is not a de Polignac number, because 22304233 - 2²¹ = 20207081 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22304233.

It is not an unprimeable number, because it can be changed into a prime (22304203) 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, 7660 + ... + 10162.

It is an arithmetic number, because the mean of its divisors is an integer number (1702720).

Almost surely, 2^22304233 is an apocalyptic number.

It is an amenable number.

22304233 is a deficient number, since it is larger than the sum of its proper divisors (4939287).

22304233 is a wasteful number, since it uses less digits than its factorization.

22304233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2596.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 22304233 is about 4722.7357537766. The cubic root of 22304233 is about 281.4896500269.

Adding to 22304233 its reverse (33240322), we get a palindrome (55544555).

The spelling of 22304233 in words is "twenty-two million, three hundred four thousand, two hundred thirty-three".