338468749 has 2 divisors, whose sum is σ = 338468750. Its totient is φ = 338468748.

The previous prime is 338468729. The next prime is 338468783. The reversal of 338468749 is 947864833.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211906249 + 126562500 = 14557^2 + 11250^2 .

It is an emirp because it is prime and its reverse (947864833) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 338468749 - 2¹¹ = 338466701 is a prime.

It is a super-2 number, since 2×338468749² = 229122188099250002, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 338468696 and 338468705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (338468719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169234374 + 169234375.

It is an arithmetic number, because the mean of its divisors is an integer number (169234375).

Almost surely, 2^338468749 is an apocalyptic number.

It is an amenable number.

338468749 is a deficient number, since it is larger than the sum of its proper divisors (1).

338468749 is an equidigital number, since it uses as much as digits as its factorization.

338468749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3483648, while the sum is 52.

The square root of 338468749 is about 18397.5201861555. The cubic root of 338468749 is about 696.9038419535.

The spelling of 338468749 in words is "three hundred thirty-eight million, four hundred sixty-eight thousand, seven hundred forty-nine".