338530289 has 2 divisors, whose sum is σ = 338530290. Its totient is φ = 338530288.

The previous prime is 338530267. The next prime is 338530303. The reversal of 338530289 is 982035833.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 294705889 + 43824400 = 17167^2 + 6620^2 .

It is a cyclic number.

It is not a de Polignac number, because 338530289 - 2²⁰ = 337481713 is a prime.

It is a super-2 number, since 2×338530289² = 229205513140847042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (338530229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169265144 + 169265145.

It is an arithmetic number, because the mean of its divisors is an integer number (169265145).

Almost surely, 2^338530289 is an apocalyptic number.

It is an amenable number.

338530289 is a deficient number, since it is larger than the sum of its proper divisors (1).

338530289 is an equidigital number, since it uses as much as digits as its factorization.

338530289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 338530289 is about 18399.1926181558. The cubic root of 338530289 is about 696.9460761465.

The spelling of 338530289 in words is "three hundred thirty-eight million, five hundred thirty thousand, two hundred eighty-nine".