22209338 has 4 divisors (see below), whose sum is σ = 33314010. Its totient is φ = 11104668.

The previous prime is 22209277. The next prime is 22209353. The reversal of 22209338 is 83390222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83390222 = 2 ⋅41695111.

It can be written as a sum of positive squares in only one way, i.e., 19509889 + 2699449 = 4417^2 + 1643^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22209338.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5552333 + ... + 5552336.

Almost surely, 2^22209338 is an apocalyptic number.

22209338 is a deficient number, since it is larger than the sum of its proper divisors (11104672).

22209338 is a wasteful number, since it uses less digits than its factorization.

22209338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11104671.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 22209338 is about 4712.6784316352. The cubic root of 22209338 is about 281.0898763935.

The spelling of 22209338 in words is "twenty-two million, two hundred nine thousand, three hundred thirty-eight".