228423 has 8 divisors (see below), whose sum is σ = 328048. Its totient is φ = 140544.

The previous prime is 228421. The next prime is 228427. The reversal of 228423 is 324822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 228423 - 2¹ = 228421 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 228423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2890 + ... + 2967.

It is an arithmetic number, because the mean of its divisors is an integer number (41006).

2²²⁸⁴²³ is an apocalyptic number.

228423 is a deficient number, since it is larger than the sum of its proper divisors (99625).

228423 is a wasteful number, since it uses less digits than its factorization.

228423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5873.

The product of its digits is 768, while the sum is 21.

The square root of 228423 is about 477.9361882093. The cubic root of 228423 is about 61.1289041547.

The spelling of 228423 in words is "two hundred twenty-eight thousand, four hundred twenty-three".