224440453 has 2 divisors, whose sum is σ = 224440454. Its totient is φ = 224440452.

The previous prime is 224440451. The next prime is 224440459. The reversal of 224440453 is 354044422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 203262049 + 21178404 = 14257^2 + 4602^2 .

It is a cyclic number.

It is not a de Polignac number, because 224440453 - 2¹ = 224440451 is a prime.

Together with 224440451, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224440451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112220226 + 112220227.

It is an arithmetic number, because the mean of its divisors is an integer number (112220227).

Almost surely, 2^224440453 is an apocalyptic number.

It is an amenable number.

224440453 is a deficient number, since it is larger than the sum of its proper divisors (1).

224440453 is an equidigital number, since it uses as much as digits as its factorization.

224440453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15360, while the sum is 28.

The square root of 224440453 is about 14981.3368228606. The cubic root of 224440453 is about 607.7155917114.

Adding to 224440453 its reverse (354044422), we get a palindrome (578484875).

The spelling of 224440453 in words is "two hundred twenty-four million, four hundred forty thousand, four hundred fifty-three".