855745238 has 8 divisors (see below), whose sum is σ = 1285844232. Its totient is φ = 427130496.

The previous prime is 855745211. The next prime is 855745259. The reversal of 855745238 is 832547558.

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

It is a junction number, because it is equal to n+sod(n) for n = 855745192 and 855745201.

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 3 ways as a sum of consecutive naturals, for example, 369620 + ... + 371927.

It is an arithmetic number, because the mean of its divisors is an integer number (160730529).

Almost surely, 2^855745238 is an apocalyptic number.

855745238 is a deficient number, since it is larger than the sum of its proper divisors (430098994).

855745238 is a wasteful number, since it uses less digits than its factorization.

855745238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742126.

The product of its digits is 1344000, while the sum is 47.

The square root of 855745238 is about 29253.1235597158. The cubic root of 855745238 is about 949.3976747001.

The spelling of 855745238 in words is "eight hundred fifty-five million, seven hundred forty-five thousand, two hundred thirty-eight".