22005316 has 12 divisors (see below), whose sum is σ = 39837420. Its totient is φ = 10623200.

The previous prime is 22005311. The next prime is 22005317. The reversal of 22005316 is 61350022.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11088900 + 10916416 = 3330^2 + 3304^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22005293 and 22005302.

It is not an unprimeable number, because it can be changed into a prime (22005311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94735 + ... + 94966.

It is an arithmetic number, because the mean of its divisors is an integer number (3319785).

Almost surely, 2^22005316 is an apocalyptic number.

It is an amenable number.

22005316 is a deficient number, since it is larger than the sum of its proper divisors (17832104).

22005316 is a wasteful number, since it uses less digits than its factorization.

22005316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189734 (or 189732 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 22005316 is about 4690.9824130986. The cubic root of 22005316 is about 280.2265004011.

Adding to 22005316 its reverse (61350022), we get a palindrome (83355338).

The spelling of 22005316 in words is "twenty-two million, five thousand, three hundred sixteen".