224389 has 4 divisors (see below), whose sum is σ = 244800. Its totient is φ = 203980.

The previous prime is 224363. The next prime is 224401. The reversal of 224389 is 983422.

224389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 224389 - 2⁷ = 224261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224309) 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, 10189 + ... + 10210.

It is an arithmetic number, because the mean of its divisors is an integer number (61200).

2²²⁴³⁸⁹ is an apocalyptic number.

It is an amenable number.

224389 is a deficient number, since it is larger than the sum of its proper divisors (20411).

224389 is a wasteful number, since it uses less digits than its factorization.

224389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20410.

The product of its digits is 3456, while the sum is 28.

The square root of 224389 is about 473.6971606417. The cubic root of 224389 is about 60.7669148539.

It can be divided in two parts, 2243 and 89, that added together give a palindrome (2332).

The spelling of 224389 in words is "two hundred twenty-four thousand, three hundred eighty-nine".