238085185 has 8 divisors (see below), whose sum is σ = 307679400. Its totient is φ = 175816704.

The previous prime is 238085161. The next prime is 238085189. The reversal of 238085185 is 581580832.

It can be written as a sum of positive squares in 4 ways, for example, as 32535616 + 205549569 = 5704^2 + 14337^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 238085185 - 2²⁷ = 103867457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (238085189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1831360 + ... + 1831489.

It is an arithmetic number, because the mean of its divisors is an integer number (38459925).

Almost surely, 2^238085185 is an apocalyptic number.

It is an amenable number.

238085185 is a deficient number, since it is larger than the sum of its proper divisors (69594215).

238085185 is a wasteful number, since it uses less digits than its factorization.

238085185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3662867.

The product of its (nonzero) digits is 76800, while the sum is 40.

The square root of 238085185 is about 15430.0092352532. The cubic root of 238085185 is about 619.7893708733.

The spelling of 238085185 in words is "two hundred thirty-eight million, eighty-five thousand, one hundred eighty-five".