22304023 has 8 divisors (see below), whose sum is σ = 25777440. Its totient is φ = 18902400.

The previous prime is 22303993. The next prime is 22304027. The reversal of 22304023 is 32040322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22304023 - 2¹³ = 22295831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22303988 and 22304006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22304027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17278 + ... + 18523.

It is an arithmetic number, because the mean of its divisors is an integer number (3222180).

Almost surely, 2^22304023 is an apocalyptic number.

22304023 is a deficient number, since it is larger than the sum of its proper divisors (3473417).

22304023 is an equidigital number, since it uses as much as digits as its factorization.

22304023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35897.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 22304023 is about 4722.7135208479. The cubic root of 22304023 is about 281.4887665920.

Adding to 22304023 its reverse (32040322), we get a palindrome (54344345).

The spelling of 22304023 in words is "twenty-two million, three hundred four thousand, twenty-three".