8422228 has 6 divisors (see below), whose sum is σ = 14738906. Its totient is φ = 4211112.

The previous prime is 8422223. The next prime is 8422231. The reversal of 8422228 is 8222248.

It can be written as a sum of positive squares in only one way, i.e., 8363664 + 58564 = 2892^2 + 242^2 .

It is a d-powerful number, because it can be written as 8² + 4 + 2⁴ + 2⁸ + 2¹⁵ + 2²³ + 8³ .

It is a junction number, because it is equal to n+sod(n) for n = 8422196 and 8422205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8422223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052775 + ... + 1052782.

Almost surely, 2^8422228 is an apocalyptic number.

It is an amenable number.

8422228 is a deficient number, since it is larger than the sum of its proper divisors (6316678).

8422228 is a wasteful number, since it uses less digits than its factorization.

8422228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2105561 (or 2105559 counting only the distinct ones).

The product of its digits is 4096, while the sum is 28.

The square root of 8422228 is about 2902.1075100692. The cubic root of 8422228 is about 203.4584186604.

The spelling of 8422228 in words is "eight million, four hundred twenty-two thousand, two hundred twenty-eight".