238328155 has 16 divisors (see below), whose sum is σ = 317931264. Its totient is φ = 170317440.

The previous prime is 238328143. The next prime is 238328161. The reversal of 238328155 is 551823832.

It is not a de Polignac number, because 238328155 - 2²¹ = 236231003 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57124 + ... + 61153.

It is an arithmetic number, because the mean of its divisors is an integer number (19870704).

Almost surely, 2^238328155 is an apocalyptic number.

238328155 is a deficient number, since it is larger than the sum of its proper divisors (79603109).

238328155 is a wasteful number, since it uses less digits than its factorization.

238328155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118326.

The product of its digits is 57600, while the sum is 37.

The square root of 238328155 is about 15437.8805216260. The cubic root of 238328155 is about 620.0001344086. Note that the first 3 decimals are identical.

The spelling of 238328155 in words is "two hundred thirty-eight million, three hundred twenty-eight thousand, one hundred fifty-five".