23028222 has 16 divisors (see below), whose sum is σ = 52636032. Its totient is φ = 6579480.

The previous prime is 23028197. The next prime is 23028223. The reversal of 23028222 is 22282032.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23028223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274104 + ... + 274187.

It is an arithmetic number, because the mean of its divisors is an integer number (3289752).

Almost surely, 2^23028222 is an apocalyptic number.

23028222 is an abundant number, since it is smaller than the sum of its proper divisors (29607810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23028222 is a wasteful number, since it uses less digits than its factorization.

23028222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548303.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 23028222 is about 4798.7729681659. The cubic root of 23028222 is about 284.5029687227.

The spelling of 23028222 in words is "twenty-three million, twenty-eight thousand, two hundred twenty-two".