228030329 has 2 divisors, whose sum is σ = 228030330. Its totient is φ = 228030328.

The previous prime is 228030311. The next prime is 228030331. The reversal of 228030329 is 923030822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 178356025 + 49674304 = 13355^2 + 7048^2 .

It is a cyclic number.

It is not a de Polignac number, because 228030329 - 2²⁴ = 211253113 is a prime.

Together with 228030331, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (228030359) 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, 114015164 + 114015165.

It is an arithmetic number, because the mean of its divisors is an integer number (114015165).

Almost surely, 2^228030329 is an apocalyptic number.

It is an amenable number.

228030329 is a deficient number, since it is larger than the sum of its proper divisors (1).

228030329 is an equidigital number, since it uses as much as digits as its factorization.

228030329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 228030329 is about 15100.6731306919. The cubic root of 228030329 is about 610.9385614357.

The spelling of 228030329 in words is "two hundred twenty-eight million, thirty thousand, three hundred twenty-nine".