338809239 has 6 divisors (see below), whose sum is σ = 489391136. Its totient is φ = 225872820.

The previous prime is 338809217. The next prime is 338809243. The reversal of 338809239 is 932908833.

338809239 is a `hidden beast` number, since 338 + 80 + 9 + 239 = 666.

It is not a de Polignac number, because 338809239 - 2⁹ = 338808727 is a prime.

It is a super-2 number, since 2×338809239² = 229583400863518242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 338809194 and 338809203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338809039) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18822727 + ... + 18822744.

Almost surely, 2^338809239 is an apocalyptic number.

338809239 is a deficient number, since it is larger than the sum of its proper divisors (150581897).

338809239 is a wasteful number, since it uses less digits than its factorization.

338809239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37645477 (or 37645474 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 338809239 is about 18406.7715528824. The cubic root of 338809239 is about 697.1374521619.

The spelling of 338809239 in words is "three hundred thirty-eight million, eight hundred nine thousand, two hundred thirty-nine".