8418222 has 16 divisors (see below), whose sum is σ = 18707280. Its totient is φ = 2806056.

The previous prime is 8418211. The next prime is 8418227. The reversal of 8418222 is 2228148.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8418227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77893 + ... + 78000.

It is an arithmetic number, because the mean of its divisors is an integer number (1169205).

Almost surely, 2^8418222 is an apocalyptic number.

8418222 is an abundant number, since it is smaller than the sum of its proper divisors (10289058).

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

8418222 is a wasteful number, since it uses less digits than its factorization.

8418222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155904 (or 155898 counting only the distinct ones).

The product of its digits is 2048, while the sum is 27.

The square root of 8418222 is about 2901.4172399019. The cubic root of 8418222 is about 203.4261554760.

The spelling of 8418222 in words is "eight million, four hundred eighteen thousand, two hundred twenty-two".