22423316 has 6 divisors (see below), whose sum is σ = 39240810. Its totient is φ = 11211656.

The previous prime is 22423309. The next prime is 22423343. The reversal of 22423316 is 61332422.

It can be written as a sum of positive squares in only one way, i.e., 20611600 + 1811716 = 4540^2 + 1346^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22423291 and 22423300.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2802911 + ... + 2802918.

It is an arithmetic number, because the mean of its divisors is an integer number (6540135).

Almost surely, 2^22423316 is an apocalyptic number.

It is an amenable number.

22423316 is a deficient number, since it is larger than the sum of its proper divisors (16817494).

22423316 is a wasteful number, since it uses less digits than its factorization.

22423316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5605833 (or 5605831 counting only the distinct ones).

The product of its digits is 1728, while the sum is 23.

The square root of 22423316 is about 4735.3263879061. The cubic root of 22423316 is about 281.9897218057.

Adding to 22423316 its reverse (61332422), we get a palindrome (83755738).

The spelling of 22423316 in words is "twenty-two million, four hundred twenty-three thousand, three hundred sixteen".