224243219 has 4 divisors (see below), whose sum is σ = 224278344. Its totient is φ = 224208096.

The previous prime is 224243213. The next prime is 224243221. The reversal of 224243219 is 912342422.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 912342422 = 2 ⋅456171211.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-224243219 is a prime.

It is a super-2 number, since 2×224243219² = 100570042534963922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 224243191 and 224243200.

It is not an unprimeable number, because it can be changed into a prime (224243213) 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, 4982 + ... + 21755.

It is an arithmetic number, because the mean of its divisors is an integer number (56069586).

Almost surely, 2^224243219 is an apocalyptic number.

224243219 is a deficient number, since it is larger than the sum of its proper divisors (35125).

224243219 is an equidigital number, since it uses as much as digits as its factorization.

224243219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35124.

The product of its digits is 6912, while the sum is 29.

The square root of 224243219 is about 14974.7527191603. The cubic root of 224243219 is about 607.5375232401.

The spelling of 224243219 in words is "two hundred twenty-four million, two hundred forty-three thousand, two hundred nineteen".