224218 has 8 divisors (see below), whose sum is σ = 341280. Its totient is φ = 110460.

The previous prime is 224209. The next prime is 224221. The reversal of 224218 is 812422.

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

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 224195 and 224204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 648 + ... + 931.

It is an arithmetic number, because the mean of its divisors is an integer number (42660).

2²²⁴²¹⁸ is an apocalyptic number.

224218 is a deficient number, since it is larger than the sum of its proper divisors (117062).

224218 is a wasteful number, since it uses less digits than its factorization.

224218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652.

The product of its digits is 256, while the sum is 19.

The square root of 224218 is about 473.5166311757. The cubic root of 224218 is about 60.7514747281.

The spelling of 224218 in words is "two hundred twenty-four thousand, two hundred eighteen".