338381081 has 2 divisors, whose sum is σ = 338381082. Its totient is φ = 338381080.

The previous prime is 338381047. The next prime is 338381137. The reversal of 338381081 is 180183833.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204747481 + 133633600 = 14309^2 + 11560^2 .

It is a cyclic number.

It is not a de Polignac number, because 338381081 - 2¹⁰ = 338380057 is a prime.

It is a super-2 number, since 2×338381081² = 229003511957457122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (338381041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169190540 + 169190541.

It is an arithmetic number, because the mean of its divisors is an integer number (169190541).

Almost surely, 2^338381081 is an apocalyptic number.

It is an amenable number.

338381081 is a deficient number, since it is larger than the sum of its proper divisors (1).

338381081 is an equidigital number, since it uses as much as digits as its factorization.

338381081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 338381081 is about 18395.1374281357. The cubic root of 338381081 is about 696.8436675732.

The spelling of 338381081 in words is "three hundred thirty-eight million, three hundred eighty-one thousand, eighty-one".