282285 has 40 divisors (see below), whose sum is σ = 548856. Its totient is φ = 138240.

The previous prime is 282281. The next prime is 282287. The reversal of 282285 is 582282.

It can be written as a sum of positive squares in 4 ways, for example, as 9801 + 272484 = 99^2 + 522^2 .

It is not a de Polignac number, because 282285 - 2² = 282281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (282281) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6865 + ... + 6905.

2²⁸²²⁸⁵ is an apocalyptic number.

It is an amenable number.

282285 is a deficient number, since it is larger than the sum of its proper divisors (266571).

282285 is a wasteful number, since it uses less digits than its factorization.

282285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75 (or 66 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 282285 is about 531.3049971532. The cubic root of 282285 is about 65.5988058726.

The spelling of 282285 in words is "two hundred eighty-two thousand, two hundred eighty-five".