22628323 has 4 divisors (see below), whose sum is σ = 23408640. Its totient is φ = 21848008.

The previous prime is 22628317. The next prime is 22628327. The reversal of 22628323 is 32382622.

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 22628323 - 2⁹ = 22627811 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22628291 and 22628300.

It is not an unprimeable number, because it can be changed into a prime (22628327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 390115 + ... + 390172.

It is an arithmetic number, because the mean of its divisors is an integer number (5852160).

Almost surely, 2^22628323 is an apocalyptic number.

22628323 is a deficient number, since it is larger than the sum of its proper divisors (780317).

22628323 is an equidigital number, since it uses as much as digits as its factorization.

22628323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780316.

The product of its digits is 6912, while the sum is 28.

The square root of 22628323 is about 4756.9236907901. The cubic root of 22628323 is about 282.8464874327.

It can be divided in two parts, 2262 and 8323, that added together give a triangular number (10585 = T₁₄₅).

The spelling of 22628323 in words is "twenty-two million, six hundred twenty-eight thousand, three hundred twenty-three".