283218 has 16 divisors (see below), whose sum is σ = 610176. Its totient is φ = 87120.

The previous prime is 283211. The next prime is 283267. The reversal of 283218 is 812382.

It is a d-powerful number, because it can be written as 2¹⁴ + 8³ + 2¹⁸ + 3⁴ + 1 + 8⁴ .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (283211) by changing a digit.

283218 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, 1738 + ... + 1893.

It is an arithmetic number, because the mean of its divisors is an integer number (38136).

2²⁸³²¹⁸ is an apocalyptic number.

283218 is an abundant number, since it is smaller than the sum of its proper divisors (326958).

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

283218 is a wasteful number, since it uses less digits than its factorization.

283218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3649.

The product of its digits is 768, while the sum is 24.

The square root of 283218 is about 532.1822995929. The cubic root of 283218 is about 65.6709981368.

It can be divided in two parts, 2832 and 18, that added together give a triangular number (2850 = T₇₅).

The spelling of 283218 in words is "two hundred eighty-three thousand, two hundred eighteen".