224439 has 8 divisors (see below), whose sum is σ = 303360. Its totient is φ = 147576.

The previous prime is 224429. The next prime is 224443. The reversal of 224439 is 934422.

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 224439 - 2⁴ = 224423 is a prime.

It is an Ulam number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237 + ... + 710.

It is an arithmetic number, because the mean of its divisors is an integer number (37920).

2²²⁴⁴³⁹ is an apocalyptic number.

224439 is a deficient number, since it is larger than the sum of its proper divisors (78921).

224439 is an equidigital number, since it uses as much as digits as its factorization.

224439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029.

The product of its digits is 1728, while the sum is 24.

The square root of 224439 is about 473.7499340369. The cubic root of 224439 is about 60.7714280283.

The spelling of 224439 in words is "two hundred twenty-four thousand, four hundred thirty-nine".