238952290188 has 24 divisors (see below), whose sum is σ = 557708999680. Its totient is φ = 79628812560.

The previous prime is 238952290169. The next prime is 238952290189. The reversal of 238952290188 is 881092259832.

It is a super-2 number, since 2×238952290188² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (238952290189) 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, 2698468 + ... + 2785611.

Almost surely, 2^238952290188 is an apocalyptic number.

It is an amenable number.

238952290188 is an abundant number, since it is smaller than the sum of its proper divisors (318756709492).

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

238952290188 is a wasteful number, since it uses less digits than its factorization.

238952290188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5487717 (or 5487715 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 57.

The spelling of 238952290188 in words is "two hundred thirty-eight billion, nine hundred fifty-two million, two hundred ninety thousand, one hundred eighty-eight".