8405228 has 12 divisors (see below), whose sum is σ = 15840720. Its totient is φ = 3879312.

The previous prime is 8405227. The next prime is 8405233. The reversal of 8405228 is 8225048.

It is a self number, because there is not a number n which added to its sum of digits gives 8405228.

It is not an unprimeable number, because it can be changed into a prime (8405227) 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 in 3 ways as a sum of consecutive naturals, for example, 80768 + ... + 80871.

It is an arithmetic number, because the mean of its divisors is an integer number (1320060).

Almost surely, 2^8405228 is an apocalyptic number.

It is an amenable number.

8405228 is a deficient number, since it is larger than the sum of its proper divisors (7435492).

8405228 is a wasteful number, since it uses less digits than its factorization.

8405228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161656 (or 161654 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 8405228 is about 2899.1771246338. The cubic root of 8405228 is about 203.3214349991.

The spelling of 8405228 in words is "eight million, four hundred five thousand, two hundred twenty-eight".