22005266 has 8 divisors (see below), whose sum is σ = 33460284. Its totient is φ = 10851840.

The previous prime is 22005241. The next prime is 22005271. The reversal of 22005266 is 66250022.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21893041 + 112225 = 4679^2 + 335^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75215 + ... + 75506.

Almost surely, 2^22005266 is an apocalyptic number.

22005266 is a deficient number, since it is larger than the sum of its proper divisors (11455018).

22005266 is a wasteful number, since it uses less digits than its factorization.

22005266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150796.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 22005266 is about 4690.9770837215. The cubic root of 22005266 is about 280.2262881594.

Adding to 22005266 its reverse (66250022), we get a palindrome (88255288).

The spelling of 22005266 in words is "twenty-two million, five thousand, two hundred sixty-six".