8445222 has 24 divisors (see below), whose sum is σ = 18976776. Its totient is φ = 2814912.

The previous prime is 8445161. The next prime is 8445251. The reversal of 8445222 is 2225448.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8203 + ... + 9174.

It is an arithmetic number, because the mean of its divisors is an integer number (790699).

Almost surely, 2^8445222 is an apocalyptic number.

8445222 is an abundant number, since it is smaller than the sum of its proper divisors (10531554).

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

8445222 is a wasteful number, since it uses less digits than its factorization.

8445222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17394 (or 17382 counting only the distinct ones).

The product of its digits is 5120, while the sum is 27.

The square root of 8445222 is about 2906.0664135563. The cubic root of 8445222 is about 203.6434081829.

The spelling of 8445222 in words is "eight million, four hundred forty-five thousand, two hundred twenty-two".