224320429 has 2 divisors, whose sum is σ = 224320430. Its totient is φ = 224320428.

The previous prime is 224320427. The next prime is 224320451. The reversal of 224320429 is 924023422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 219099204 + 5221225 = 14802^2 + 2285^2 .

It is a cyclic number.

It is not a de Polignac number, because 224320429 - 2¹ = 224320427 is a prime.

It is a super-3 number, since 3×224320429³ (a number of 26 digits) contains 333 as substring.

Together with 224320427, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 224320397 and 224320406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224320427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112160214 + 112160215.

It is an arithmetic number, because the mean of its divisors is an integer number (112160215).

Almost surely, 2^224320429 is an apocalyptic number.

It is an amenable number.

224320429 is a deficient number, since it is larger than the sum of its proper divisors (1).

224320429 is an equidigital number, since it uses as much as digits as its factorization.

224320429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 224320429 is about 14977.3305031304. The cubic root of 224320429 is about 607.6072430585.

The spelling of 224320429 in words is "two hundred twenty-four million, three hundred twenty thousand, four hundred twenty-nine".