338342321 has 2 divisors, whose sum is σ = 338342322. Its totient is φ = 338342320.

The previous prime is 338342287. The next prime is 338342341. The reversal of 338342321 is 123243833.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 272910400 + 65431921 = 16520^2 + 8089^2 .

It is an emirp because it is prime and its reverse (123243833) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 338342321 - 2¹⁴ = 338325937 is a prime.

It is a super-2 number, since 2×338342321² = 228951052359334082, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (338342341) 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, 169171160 + 169171161.

It is an arithmetic number, because the mean of its divisors is an integer number (169171161).

Almost surely, 2^338342321 is an apocalyptic number.

It is an amenable number.

338342321 is a deficient number, since it is larger than the sum of its proper divisors (1).

338342321 is an equidigital number, since it uses as much as digits as its factorization.

338342321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 29.

The square root of 338342321 is about 18394.0838586759. The cubic root of 338342321 is about 696.8170598091.

The spelling of 338342321 in words is "three hundred thirty-eight million, three hundred forty-two thousand, three hundred twenty-one".