238158650730 has 512 divisors, whose sum is σ = 796213297152. Its totient is φ = 43993497600.

The previous prime is 238158650701. The next prime is 238158650731. The reversal of 238158650730 is 37056851832.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 238158650730.

It is not an unprimeable number, because it can be changed into a prime (238158650731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 114443290 + ... + 114445370.

It is an arithmetic number, because the mean of its divisors is an integer number (1555104096).

Almost surely, 2^238158650730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238158650730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (398106648576).

238158650730 is an abundant number, since it is smaller than the sum of its proper divisors (558054646422).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

238158650730 is a wasteful number, since it uses less digits than its factorization.

238158650730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2262.

The product of its (nonzero) digits is 1209600, while the sum is 48.

It can be divided in two parts, 238158 and 650730, that added together give a palindrome (888888).

The spelling of 238158650730 in words is "two hundred thirty-eight billion, one hundred fifty-eight million, six hundred fifty thousand, seven hundred thirty".