338116909 has 16 divisors (see below), whose sum is σ = 369054000. Its totient is φ = 307915776.

The previous prime is 338116901. The next prime is 338116921. The reversal of 338116909 is 909611833.

It can be written as a sum of positive squares in 8 ways, for example, as 24472809 + 313644100 = 4947^2 + 17710^2 .

It is a cyclic number.

It is not a de Polignac number, because 338116909 - 2³ = 338116901 is a prime.

It is a super-2 number, since 2×338116909² = 228646088303428562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338116901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 334597 + ... + 335605.

It is an arithmetic number, because the mean of its divisors is an integer number (23065875).

Almost surely, 2^338116909 is an apocalyptic number.

It is an amenable number.

338116909 is a deficient number, since it is larger than the sum of its proper divisors (30937091).

338116909 is a wasteful number, since it uses less digits than its factorization.

338116909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 338116909 is about 18387.9555416039. The cubic root of 338116909 is about 696.6622798601.

The spelling of 338116909 in words is "three hundred thirty-eight million, one hundred sixteen thousand, nine hundred nine".