224320427 has 2 divisors, whose sum is σ = 224320428. Its totient is φ = 224320426.

The previous prime is 224320409. The next prime is 224320429. The reversal of 224320427 is 724023422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 224320427 - 2⁸ = 224320171 is a prime.

Together with 224320429, 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 = 224320396 and 224320405.

It is not a weakly prime, because it can be changed into another prime (224320429) 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, 112160213 + 112160214.

It is an arithmetic number, because the mean of its divisors is an integer number (112160214).

Almost surely, 2^224320427 is an apocalyptic number.

224320427 is a deficient number, since it is larger than the sum of its proper divisors (1).

224320427 is an equidigital number, since it uses as much as digits as its factorization.

224320427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 26.

The square root of 224320427 is about 14977.3304363628. The cubic root of 224320427 is about 607.6072412528.

Adding to 224320427 its reverse (724023422), we get a palindrome (948343849).

The spelling of 224320427 in words is "two hundred twenty-four million, three hundred twenty thousand, four hundred twenty-seven".