810228 has 24 divisors (see below), whose sum is σ = 1905120. Its totient is φ = 268000.

The previous prime is 810223. The next prime is 810239. The reversal of 810228 is 822018.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (810223) by changing a digit.

810228 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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2878 + ... + 3146.

It is an arithmetic number, because the mean of its divisors is an integer number (79380).

2⁸¹⁰²²⁸ is an apocalyptic number.

It is an amenable number.

810228 is an abundant number, since it is smaller than the sum of its proper divisors (1094892).

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

810228 is a wasteful number, since it uses less digits than its factorization.

810228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527 (or 525 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 810228 is about 900.1266577543. The cubic root of 810228 is about 93.2257206422.

The spelling of 810228 in words is "eight hundred ten thousand, two hundred twenty-eight".