22128833 has 4 divisors (see below), whose sum is σ = 22180608. Its totient is φ = 22077060.

The previous prime is 22128811. The next prime is 22128839. The reversal of 22128833 is 33882122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22128833 - 2¹² = 22124737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22128796 and 22128805.

It is not an unprimeable number, because it can be changed into a prime (22128839) 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, 25241 + ... + 26102.

It is an arithmetic number, because the mean of its divisors is an integer number (5545152).

Almost surely, 2^22128833 is an apocalyptic number.

It is an amenable number.

22128833 is a deficient number, since it is larger than the sum of its proper divisors (51775).

22128833 is an equidigital number, since it uses as much as digits as its factorization.

22128833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51774.

The product of its digits is 4608, while the sum is 29.

The square root of 22128833 is about 4704.1293562146. The cubic root of 22128833 is about 280.7498311697.

The spelling of 22128833 in words is "twenty-two million, one hundred twenty-eight thousand, eight hundred thirty-three".