23321322 has 72 divisors (see below), whose sum is σ = 55334916. Its totient is φ = 7091712.

The previous prime is 23321321. The next prime is 23321323. The reversal of 23321322 is 22312332.

It is a happy number.

23321322 is a `hidden beast` number, since 23 + 321 + 322 = 666.

It is an interprime number because it is at equal distance from previous prime (23321321) and next prime (23321323).

It can be written as a sum of positive squares in 2 ways, for example, as 22382361 + 938961 = 4731^2 + 969^2 .

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 = 23321295 and 23321304.

It is not an unprimeable number, because it can be changed into a prime (23321321) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 240378 + ... + 240474.

Almost surely, 2^23321322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23321322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27667458).

23321322 is an abundant number, since it is smaller than the sum of its proper divisors (32013594).

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

23321322 is a wasteful number, since it uses less digits than its factorization.

23321322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180 (or 158 counting only the distinct ones).

The product of its digits is 432, while the sum is 18.

The square root of 23321322 is about 4829.2154642343. The cubic root of 23321322 is about 285.7049216693.

Adding to 23321322 its reverse (22312332), we get a palindrome (45633654).

The spelling of 23321322 in words is "twenty-three million, three hundred twenty-one thousand, three hundred twenty-two".