238290981938 has 8 divisors (see below), whose sum is σ = 361742936688. Its totient is φ = 117710003044.

The previous prime is 238290981931. The next prime is 238290982003. The reversal of 238290981938 is 839189092832.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (238290981931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 717743756 + ... + 717744087.

It is an arithmetic number, because the mean of its divisors is an integer number (45217867086).

Almost surely, 2^238290981938 is an apocalyptic number.

238290981938 is a deficient number, since it is larger than the sum of its proper divisors (123451954750).

238290981938 is a wasteful number, since it uses less digits than its factorization.

238290981938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435487928.

The product of its (nonzero) digits is 13436928, while the sum is 62.

The spelling of 238290981938 in words is "two hundred thirty-eight billion, two hundred ninety million, nine hundred eighty-one thousand, nine hundred thirty-eight".