338342287 has 2 divisors, whose sum is σ = 338342288. Its totient is φ = 338342286.

The previous prime is 338342281. The next prime is 338342321. The reversal of 338342287 is 782243833.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-338342287 is a prime.

It is a super-2 number, since 2×338342287² = 228951006344780738, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (338342281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169171143 + 169171144.

It is an arithmetic number, because the mean of its divisors is an integer number (169171144).

Almost surely, 2^338342287 is an apocalyptic number.

338342287 is a deficient number, since it is larger than the sum of its proper divisors (1).

338342287 is an equidigital number, since it uses as much as digits as its factorization.

338342287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 40.

The square root of 338342287 is about 18394.0829344656. The cubic root of 338342287 is about 696.8170364681.

The spelling of 338342287 in words is "three hundred thirty-eight million, three hundred forty-two thousand, two hundred eighty-seven".