224450321 has 2 divisors, whose sum is σ = 224450322. Its totient is φ = 224450320.

The previous prime is 224450279. The next prime is 224450327. The reversal of 224450321 is 123054422.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 215062225 + 9388096 = 14665^2 + 3064^2 .

It is a cyclic number.

It is not a de Polignac number, because 224450321 - 2¹⁰ = 224449297 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (224450327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112225160 + 112225161.

It is an arithmetic number, because the mean of its divisors is an integer number (112225161).

Almost surely, 2^224450321 is an apocalyptic number.

It is an amenable number.

224450321 is a deficient number, since it is larger than the sum of its proper divisors (1).

224450321 is an equidigital number, since it uses as much as digits as its factorization.

224450321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 224450321 is about 14981.6661623466. Note that the first 3 decimals coincide. The cubic root of 224450321 is about 607.7244980820.

The spelling of 224450321 in words is "two hundred twenty-four million, four hundred fifty thousand, three hundred twenty-one".