8538222 has 32 divisors (see below), whose sum is σ = 21291264. Its totient is φ = 2217600.

The previous prime is 8538193. The next prime is 8538223. The reversal of 8538222 is 2228358.

It is a self number, because there is not a number n which added to its sum of digits gives 8538222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8538223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8779 + ... + 9702.

It is an arithmetic number, because the mean of its divisors is an integer number (665352).

Almost surely, 2^8538222 is an apocalyptic number.

8538222 is an abundant number, since it is smaller than the sum of its proper divisors (12753042).

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

8538222 is a wasteful number, since it uses less digits than its factorization.

8538222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18504.

The product of its digits is 7680, while the sum is 30.

The square root of 8538222 is about 2922.0236138676. The cubic root of 8538222 is about 204.3881977655.

The spelling of 8538222 in words is "eight million, five hundred thirty-eight thousand, two hundred twenty-two".