438830459 has 2 divisors, whose sum is σ = 438830460. Its totient is φ = 438830458.

The previous prime is 438830453. The next prime is 438830473. The reversal of 438830459 is 954038834.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-438830459 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (438830453) 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, 219415229 + 219415230.

It is an arithmetic number, because the mean of its divisors is an integer number (219415230).

Almost surely, 2^438830459 is an apocalyptic number.

438830459 is a deficient number, since it is larger than the sum of its proper divisors (1).

438830459 is an equidigital number, since it uses as much as digits as its factorization.

438830459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 44.

The square root of 438830459 is about 20948.2805738323. The cubic root of 438830459 is about 759.9159989107.

The spelling of 438830459 in words is "four hundred thirty-eight million, eight hundred thirty thousand, four hundred fifty-nine".