22403322 has 12 divisors (see below), whose sum is σ = 48540570. Its totient is φ = 7467768.

The previous prime is 22403291. The next prime is 22403323. The reversal of 22403322 is 22330422.

It can be written as a sum of positive squares in only one way, i.e., 18326961 + 4076361 = 4281^2 + 2019^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1244629 = 22403322 / (2 + 2 + 4 + 0 + 3 + 3 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 22403295 and 22403304.

It is not an unprimeable number, because it can be changed into a prime (22403323) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 622297 + ... + 622332.

Almost surely, 2^22403322 is an apocalyptic number.

22403322 is an abundant number, since it is smaller than the sum of its proper divisors (26137248).

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

22403322 is a wasteful number, since it uses less digits than its factorization.

22403322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244637 (or 1244634 counting only the distinct ones).

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

The square root of 22403322 is about 4733.2147637731. The cubic root of 22403322 is about 281.9058837881.

Adding to 22403322 its reverse (22330422), we get a palindrome (44733744).

Subtracting from 22403322 its reverse (22330422), we obtain a square (72900 = 270²).

The spelling of 22403322 in words is "twenty-two million, four hundred three thousand, three hundred twenty-two".