238545238 has 4 divisors (see below), whose sum is σ = 357817860. Its totient is φ = 119272618.

The previous prime is 238545233. The next prime is 238545269. The reversal of 238545238 is 832545832.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 238545238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238545233) by changing a digit.

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 as a sum of consecutive naturals, namely, 59636308 + ... + 59636311.

It is an arithmetic number, because the mean of its divisors is an integer number (89454465).

Almost surely, 2^238545238 is an apocalyptic number.

238545238 is a deficient number, since it is larger than the sum of its proper divisors (119272622).

238545238 is a wasteful number, since it uses less digits than its factorization.

238545238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119272621.

The product of its digits is 230400, while the sum is 40.

The square root of 238545238 is about 15444.9097763632. The cubic root of 238545238 is about 620.1883212180.

It can be divided in two parts, 23854 and 5238, that added together give a palindrome (29092).

The spelling of 238545238 in words is "two hundred thirty-eight million, five hundred forty-five thousand, two hundred thirty-eight".