338840459 has 2 divisors, whose sum is σ = 338840460. Its totient is φ = 338840458.

The previous prime is 338840429. The next prime is 338840503. The reversal of 338840459 is 954048833.

It is an a-pointer prime, because the next prime (338840503) can be obtained adding 338840459 to its sum of digits (44).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-338840459 is a prime.

It is a super-2 number, since 2×338840459² = 229625713310661362, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (338840419) 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, 169420229 + 169420230.

It is an arithmetic number, because the mean of its divisors is an integer number (169420230).

Almost surely, 2^338840459 is an apocalyptic number.

338840459 is a deficient number, since it is larger than the sum of its proper divisors (1).

338840459 is an equidigital number, since it uses as much as digits as its factorization.

338840459 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 338840459 is about 18407.6195908108. The cubic root of 338840459 is about 697.1588643710.

The spelling of 338840459 in words is "three hundred thirty-eight million, eight hundred forty thousand, four hundred fifty-nine".