338485109 has 4 divisors (see below), whose sum is σ = 338524704. Its totient is φ = 338445516.

The previous prime is 338485097. The next prime is 338485123. The reversal of 338485109 is 901584833.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 901584833 = 97 ⋅9294689.

It is a cyclic number.

It is not a de Polignac number, because 338485109 - 2⁴ = 338485093 is a prime.

It is a super-2 number, since 2×338485109² = 229144338029483762, 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 (338485009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1067 + ... + 26040.

It is an arithmetic number, because the mean of its divisors is an integer number (84631176).

Almost surely, 2^338485109 is an apocalyptic number.

It is an amenable number.

338485109 is a deficient number, since it is larger than the sum of its proper divisors (39595).

338485109 is a wasteful number, since it uses less digits than its factorization.

338485109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39594.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 338485109 is about 18397.9648059235. The cubic root of 338485109 is about 696.9150701325.

The spelling of 338485109 in words is "three hundred thirty-eight million, four hundred eighty-five thousand, one hundred nine".