8938118394 has 32 divisors (see below), whose sum is σ = 20134583040. Its totient is φ = 2938558176.

The previous prime is 8938118393. The next prime is 8938118411. The reversal of 8938118394 is 4938118398.

8938118394 is a `hidden beast` number, since 89 + 381 + 183 + 9 + 4 = 666.

It is a super-2 number, since 2×8938118394² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8938118394.

It is not an unprimeable number, because it can be changed into a prime (8938118393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1129762 + ... + 1137645.

It is an arithmetic number, because the mean of its divisors is an integer number (629205720).

Almost surely, 2^8938118394 is an apocalyptic number.

8938118394 is an abundant number, since it is smaller than the sum of its proper divisors (11196464646).

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

8938118394 is a wasteful number, since it uses less digits than its factorization.

8938118394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2267491 (or 2267485 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 54.

The square root of 8938118394 is about 94541.6225479550. The cubic root of 8938118394 is about 2075.3054870501.

The spelling of 8938118394 in words is "eight billion, nine hundred thirty-eight million, one hundred eighteen thousand, three hundred ninety-four".