224365 has 8 divisors (see below), whose sum is σ = 281088. Its totient is φ = 171600.

The previous prime is 224363. The next prime is 224401. The reversal of 224365 is 563422.

It is a happy number.

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

It is not a de Polignac number, because 224365 - 2¹ = 224363 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 (224363) 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, 861 + ... + 1090.

It is an arithmetic number, because the mean of its divisors is an integer number (35136).

2²²⁴³⁶⁵ is an apocalyptic number.

It is an amenable number.

224365 is a deficient number, since it is larger than the sum of its proper divisors (56723).

224365 is a wasteful number, since it uses less digits than its factorization.

224365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1979.

The product of its digits is 1440, while the sum is 22.

The square root of 224365 is about 473.6718273235. The cubic root of 224365 is about 60.7647482920.

Adding to 224365 its reverse (563422), we get a palindrome (787787).

The spelling of 224365 in words is "two hundred twenty-four thousand, three hundred sixty-five".