338578241 has 2 divisors, whose sum is σ = 338578242. Its totient is φ = 338578240.

The previous prime is 338578217. The next prime is 338578267. The reversal of 338578241 is 142875833.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 220225600 + 118352641 = 14840^2 + 10879^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-338578241 is a prime.

It is a super-2 number, since 2×338578241² = 229270450557308162, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (338574241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169289120 + 169289121.

It is an arithmetic number, because the mean of its divisors is an integer number (169289121).

Almost surely, 2^338578241 is an apocalyptic number.

It is an amenable number.

338578241 is a deficient number, since it is larger than the sum of its proper divisors (1).

338578241 is an equidigital number, since it uses as much as digits as its factorization.

338578241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161280, while the sum is 41.

The square root of 338578241 is about 18400.4956726714. The cubic root of 338578241 is about 696.9789815039.

The spelling of 338578241 in words is "three hundred thirty-eight million, five hundred seventy-eight thousand, two hundred forty-one".