239438245 has 8 divisors (see below), whose sum is σ = 288395640. Its totient is φ = 190837440.

The previous prime is 239438219. The next prime is 239438261. The reversal of 239438245 is 542834932.

It can be written as a sum of positive squares in 4 ways, for example, as 859329 + 238578916 = 927^2 + 15446^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 239438245 - 2⁹ = 239437733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 239438198 and 239438207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87666 + ... + 90355.

It is an arithmetic number, because the mean of its divisors is an integer number (36049455).

Almost surely, 2^239438245 is an apocalyptic number.

It is an amenable number.

239438245 is a deficient number, since it is larger than the sum of its proper divisors (48957395).

239438245 is a wasteful number, since it uses less digits than its factorization.

239438245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178295.

The product of its digits is 207360, while the sum is 40.

The square root of 239438245 is about 15473.7921984238. The cubic root of 239438245 is about 620.9612603467.

The spelling of 239438245 in words is "two hundred thirty-nine million, four hundred thirty-eight thousand, two hundred forty-five".