284212 has 12 divisors (see below), whose sum is σ = 509796. Its totient is φ = 138560.

The previous prime is 284201. The next prime is 284227. The reversal of 284212 is 212482.

It can be written as a sum of positive squares in 2 ways, for example, as 59536 + 224676 = 244^2 + 474^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 284212.

It is a congruent number.

It is an unprimeable number.

284212 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 703 + ... + 1030.

It is an arithmetic number, because the mean of its divisors is an integer number (42483).

2²⁸⁴²¹² is an apocalyptic number.

It is an amenable number.

284212 is a deficient number, since it is larger than the sum of its proper divisors (225584).

284212 is a wasteful number, since it uses less digits than its factorization.

284212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1778 (or 1776 counting only the distinct ones).

The product of its digits is 256, while the sum is 19.

The square root of 284212 is about 533.1153721288. The cubic root of 284212 is about 65.7477361430.

Adding to 284212 its reverse (212482), we get a palindrome (496694).

It can be divided in two parts, 284 and 212, that added together give a triangular number (496 = T₃₁).

The spelling of 284212 in words is "two hundred eighty-four thousand, two hundred twelve".