289228 has 6 divisors (see below), whose sum is σ = 506156. Its totient is φ = 144612.

The previous prime is 289213. The next prime is 289241. The reversal of 289228 is 822982.

289228 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 289228.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36150 + ... + 36157.

2²⁸⁹²²⁸ is an apocalyptic number.

It is an amenable number.

289228 is a deficient number, since it is larger than the sum of its proper divisors (216928).

289228 is a wasteful number, since it uses less digits than its factorization.

289228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72311 (or 72309 counting only the distinct ones).

The product of its digits is 4608, while the sum is 31.

The square root of 289228 is about 537.7992190400. The cubic root of 289228 is about 66.1322722290.

The spelling of 289228 in words is "two hundred eighty-nine thousand, two hundred twenty-eight".