22304323 has 4 divisors (see below), whose sum is σ = 23616360. Its totient is φ = 20992288.

The previous prime is 22304299. The next prime is 22304327. The reversal of 22304323 is 32340322.

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 22304323 - 2⁹ = 22303811 is a prime.

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 22304323.

It is not an unprimeable number, because it can be changed into a prime (22304327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 655993 + ... + 656026.

It is an arithmetic number, because the mean of its divisors is an integer number (5904090).

Almost surely, 2^22304323 is an apocalyptic number.

22304323 is a deficient number, since it is larger than the sum of its proper divisors (1312037).

22304323 is a wasteful number, since it uses less digits than its factorization.

22304323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312036.

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

The square root of 22304323 is about 4722.7452821426. The cubic root of 22304323 is about 281.4900286402.

Adding to 22304323 its reverse (32340322), we get a palindrome (54644645).

The spelling of 22304323 in words is "twenty-two million, three hundred four thousand, three hundred twenty-three".