224444405 has 8 divisors (see below), whose sum is σ = 276612792. Its totient is φ = 174702528.

The previous prime is 224444393. The next prime is 224444449. The reversal of 224444405 is 504444422.

It can be written as a sum of positive squares in 4 ways, for example, as 74063236 + 150381169 = 8606^2 + 12263^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 224444405 - 2¹⁰ = 224443381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 606422 + ... + 606791.

It is an arithmetic number, because the mean of its divisors is an integer number (34576599).

Almost surely, 2^224444405 is an apocalyptic number.

It is an amenable number.

224444405 is a deficient number, since it is larger than the sum of its proper divisors (52168387).

224444405 is a wasteful number, since it uses less digits than its factorization.

224444405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213255.

The product of its (nonzero) digits is 20480, while the sum is 29.

The square root of 224444405 is about 14981.4687197217. The cubic root of 224444405 is about 607.7191586232.

Adding to 224444405 its reverse (504444422), we get a palindrome (728888827).

The spelling of 224444405 in words is "two hundred twenty-four million, four hundred forty-four thousand, four hundred five".