804228 has 24 divisors (see below), whose sum is σ = 1942080. Its totient is φ = 258720.

The previous prime is 804211. The next prime is 804239. The reversal of 804228 is 822408.

It is a junction number, because it is equal to n+sod(n) for n = 804198 and 804207.

It is an unprimeable number.

804228 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 7 ways as a sum of consecutive naturals, for example, 808 + ... + 1503.

It is an arithmetic number, because the mean of its divisors is an integer number (80920).

2⁸⁰⁴²²⁸ is an apocalyptic number.

It is an amenable number.

804228 is an abundant number, since it is smaller than the sum of its proper divisors (1137852).

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

804228 is a wasteful number, since it uses less digits than its factorization.

804228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2347 (or 2345 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 804228 is about 896.7876002711. The cubic root of 804228 is about 92.9950280612.

The spelling of 804228 in words is "eight hundred four thousand, two hundred twenty-eight".