238630198 has 16 divisors (see below), whose sum is σ = 374137056. Its totient is φ = 113935360.

The previous prime is 238630181. The next prime is 238630199. The reversal of 238630198 is 891036832.

It is a self number, because there is not a number n which added to its sum of digits gives 238630198.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238630199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25440 + ... + 33532.

It is an arithmetic number, because the mean of its divisors is an integer number (23383566).

Almost surely, 2^238630198 is an apocalyptic number.

238630198 is a deficient number, since it is larger than the sum of its proper divisors (135506858).

238630198 is a wasteful number, since it uses less digits than its factorization.

238630198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8759.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 238630198 is about 15447.6599522387. The cubic root of 238630198 is about 620.2619410004.

It can be divided in two parts, 238 and 630198, that added together give a square (630436 = 794²).

The spelling of 238630198 in words is "two hundred thirty-eight million, six hundred thirty thousand, one hundred ninety-eight".