224444019 has 4 divisors (see below), whose sum is σ = 299258696. Its totient is φ = 149629344.

The previous prime is 224443997. The next prime is 224444039. The reversal of 224444019 is 910444422.

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

It is not a de Polignac number, because 224444019 - 2⁵ = 224443987 is a prime.

It is a super-2 number, since 2×224444019² = 100750235329744722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (224444039) 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, 37407334 + ... + 37407339.

It is an arithmetic number, because the mean of its divisors is an integer number (74814674).

Almost surely, 2^224444019 is an apocalyptic number.

224444019 is a deficient number, since it is larger than the sum of its proper divisors (74814677).

224444019 is an equidigital number, since it uses as much as digits as its factorization.

224444019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74814676.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 224444019 is about 14981.4558371341. The cubic root of 224444019 is about 607.7188102374.

The spelling of 224444019 in words is "two hundred twenty-four million, four hundred forty-four thousand, nineteen".