230444381 has 2 divisors, whose sum is σ = 230444382. Its totient is φ = 230444380.

The previous prime is 230444363. The next prime is 230444393. The reversal of 230444381 is 183444032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 221741881 + 8702500 = 14891^2 + 2950^2 .

It is a cyclic number.

It is not a de Polignac number, because 230444381 - 2¹⁰ = 230443357 is a prime.

It is a super-2 number, since 2×230444381² = 106209225468946322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230444321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115222190 + 115222191.

It is an arithmetic number, because the mean of its divisors is an integer number (115222191).

Almost surely, 2^230444381 is an apocalyptic number.

It is an amenable number.

230444381 is a deficient number, since it is larger than the sum of its proper divisors (1).

230444381 is an equidigital number, since it uses as much as digits as its factorization.

230444381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 230444381 is about 15180.3946259641. The cubic root of 230444381 is about 613.0869063262.

The spelling of 230444381 in words is "two hundred thirty million, four hundred forty-four thousand, three hundred eighty-one".