238001136 has 80 divisors (see below), whose sum is σ = 637959168. Its totient is φ = 76377600.

The previous prime is 238001129. The next prime is 238001177. The reversal of 238001136 is 631100832.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 456556 + ... + 457076.

Almost surely, 2^238001136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238001136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (318979584).

238001136 is an abundant number, since it is smaller than the sum of its proper divisors (399958032).

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

238001136 is a wasteful number, since it uses less digits than its factorization.

238001136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870 (or 864 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 238001136 is about 15427.2854384691. The cubic root of 238001136 is about 619.7164294624.

Adding to 238001136 its reverse (631100832), we get a palindrome (869101968).

The spelling of 238001136 in words is "two hundred thirty-eight million, one thousand, one hundred thirty-six".