338670281 has 2 divisors, whose sum is σ = 338670282. Its totient is φ = 338670280.

The previous prime is 338670253. The next prime is 338670289. The reversal of 338670281 is 182076833.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 265396681 + 73273600 = 16291^2 + 8560^2 .

It is an emirp because it is prime and its reverse (182076833) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 338670281 - 2¹⁴ = 338653897 is a prime.

It is a super-2 number, since 2×338670281² = 229395118465237922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (338670289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169335140 + 169335141.

It is an arithmetic number, because the mean of its divisors is an integer number (169335141).

Almost surely, 2^338670281 is an apocalyptic number.

It is an amenable number.

338670281 is a deficient number, since it is larger than the sum of its proper divisors (1).

338670281 is an equidigital number, since it uses as much as digits as its factorization.

338670281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 338670281 is about 18402.9965223058. The cubic root of 338670281 is about 697.0421319820.

The spelling of 338670281 in words is "three hundred thirty-eight million, six hundred seventy thousand, two hundred eighty-one".