224444447 has 4 divisors (see below), whose sum is σ = 224902056. Its totient is φ = 223986840.

The previous prime is 224444393. The next prime is 224444449. The reversal of 224444447 is 744444422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 744444422 = 2 ⋅372222211.

It is a cyclic number.

It is not a de Polignac number, because 224444447 - 2⁸ = 224444191 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224444449) 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, 228068 + ... + 229049.

It is an arithmetic number, because the mean of its divisors is an integer number (56225514).

Almost surely, 2^224444447 is an apocalyptic number.

224444447 is a deficient number, since it is larger than the sum of its proper divisors (457609).

224444447 is an equidigital number, since it uses as much as digits as its factorization.

224444447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457608.

The product of its digits is 114688, while the sum is 35.

The square root of 224444447 is about 14981.4701214534. The cubic root of 224444447 is about 607.7191965304.

Adding to 224444447 its reverse (744444422), we get a palindrome (968888869).

The spelling of 224444447 in words is "two hundred twenty-four million, four hundred forty-four thousand, four hundred forty-seven".