224489 has 4 divisors (see below), whose sum is σ = 232260. Its totient is φ = 216720.

The previous prime is 224473. The next prime is 224491. The reversal of 224489 is 984422.

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

It can be written as a sum of positive squares in 2 ways, for example, as 80089 + 144400 = 283^2 + 380^2 .

It is a cyclic number.

It is not a de Polignac number, because 224489 - 2⁴ = 224473 is a prime.

It is a super-2 number, since 2×224489² = 100790622242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 7741 = 224489 / (2 + 2 + 4 + 4 + 8 + 9).

It is a d-powerful number, because it can be written as 2¹⁵ + 2¹⁷ + 4³ + 4⁵ + 8³ + 9⁵ .

It is a Duffinian number.

It is a plaindrome in base 10 and 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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3842 + ... + 3899.

It is an arithmetic number, because the mean of its divisors is an integer number (58065).

2²²⁴⁴⁸⁹ is an apocalyptic number.

224489 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

224489 is a deficient number, since it is larger than the sum of its proper divisors (7771).

224489 is an equidigital number, since it uses as much as digits as its factorization.

224489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7770.

The product of its digits is 4608, while the sum is 29.

The square root of 224489 is about 473.8027015541. The cubic root of 224489 is about 60.7759405325.

The spelling of 224489 in words is "two hundred twenty-four thousand, four hundred eighty-nine".