238118845 has 8 divisors (see below), whose sum is σ = 286929720. Its totient is φ = 189703680.

The previous prime is 238118833. The next prime is 238118851. The reversal of 238118845 is 548811832.

It can be written as a sum of positive squares in 4 ways, for example, as 32741284 + 205377561 = 5722^2 + 14331^2 .

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

It is not a de Polignac number, because 238118845 - 2¹⁵ = 238086077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 238118798 and 238118807.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 97600 + ... + 100009.

It is an arithmetic number, because the mean of its divisors is an integer number (35866215).

Almost surely, 2^238118845 is an apocalyptic number.

It is an amenable number.

238118845 is a deficient number, since it is larger than the sum of its proper divisors (48810875).

238118845 is a wasteful number, since it uses less digits than its factorization.

238118845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197855.

The product of its digits is 61440, while the sum is 40.

The square root of 238118845 is about 15431.0999283914. The cubic root of 238118845 is about 619.8185776846.

The spelling of 238118845 in words is "two hundred thirty-eight million, one hundred eighteen thousand, eight hundred forty-five".