23322222 has 128 divisors (see below), whose sum is σ = 66355200. Its totient is φ = 5896800.

The previous prime is 23322197. The next prime is 23322223. The reversal of 23322222 is 22222332.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 23322195 and 23322204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23322223) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 295179 + ... + 295257.

It is an arithmetic number, because the mean of its divisors is an integer number (518400).

Almost surely, 2^23322222 is an apocalyptic number.

23322222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 23322222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33177600).

23322222 is an abundant number, since it is smaller than the sum of its proper divisors (43032978).

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

23322222 is a wasteful number, since it uses less digits than its factorization.

23322222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 173 counting only the distinct ones).

The product of its digits is 576, while the sum is 18.

The square root of 23322222 is about 4829.3086461729. The cubic root of 23322222 is about 285.7085968629.

Adding to 23322222 its reverse (22222332), we get a palindrome (45544554).

It can be divided in two parts, 2332 and 2222, that added together give a palindrome (4554).

The spelling of 23322222 in words is "twenty-three million, three hundred twenty-two thousand, two hundred twenty-two".