210228 has 12 divisors (see below), whose sum is σ = 490560. Its totient is φ = 70072.

The previous prime is 210209. The next prime is 210229. The reversal of 210228 is 822012.

210228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8748 + ... + 8771.

It is an arithmetic number, because the mean of its divisors is an integer number (40880).

2²¹⁰²²⁸ is an apocalyptic number.

It is an amenable number.

210228 is an abundant number, since it is smaller than the sum of its proper divisors (280332).

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

210228 is a wasteful number, since it uses less digits than its factorization.

210228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17526 (or 17524 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 210228 is about 458.5062704042. The cubic root of 210228 is about 59.4607230839.

The spelling of 210228 in words is "two hundred ten thousand, two hundred twenty-eight".