238816011 has 16 divisors (see below), whose sum is σ = 370080000. Its totient is φ = 134152608.

The previous prime is 238816009. The next prime is 238816043. The reversal of 238816011 is 110618832.

It is not a de Polignac number, because 238816011 - 2¹ = 238816009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 238816011.

It is not an unprimeable number, because it can be changed into a prime (238816211) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 95136 + ... + 97613.

It is an arithmetic number, because the mean of its divisors is an integer number (23130000).

Almost surely, 2^238816011 is an apocalyptic number.

238816011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

238816011 is a deficient number, since it is larger than the sum of its proper divisors (131263989).

238816011 is a wasteful number, since it uses less digits than its factorization.

238816011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192818.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 238816011 is about 15453.6730585321. The cubic root of 238816011 is about 620.4228913349.

It can be divided in two parts, 23881 and 6011, that added together give a palindrome (29892).

The spelling of 238816011 in words is "two hundred thirty-eight million, eight hundred sixteen thousand, eleven".