228283 has 4 divisors (see below), whose sum is σ = 249048. Its totient is φ = 207520.

The previous prime is 228281. The next prime is 228299. The reversal of 228283 is 382822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 228283 - 2¹ = 228281 is a prime.

It is a super-2 number, since 2×228283² = 104226256178, which contains 22 as substring.

It is a Duffinian number.

228283 is a lucky number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (228281) 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, 10366 + ... + 10387.

It is an arithmetic number, because the mean of its divisors is an integer number (62262).

2²²⁸²⁸³ is an apocalyptic number.

228283 is a deficient number, since it is larger than the sum of its proper divisors (20765).

228283 is a wasteful number, since it uses less digits than its factorization.

228283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20764.

The product of its digits is 1536, while the sum is 25.

The square root of 228283 is about 477.7897026936. The cubic root of 228283 is about 61.1164130080.

Multiplying 228283 by its sum of digits (25), we get a palindrome (5707075).

The spelling of 228283 in words is "two hundred twenty-eight thousand, two hundred eighty-three".