118281938 has 8 divisors (see below), whose sum is σ = 177496320. Its totient is φ = 59116500.

The previous prime is 118281931. The next prime is 118281941. The reversal of 118281938 is 839182811.

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

It is a junction number, because it is equal to n+sod(n) for n = 118281895 and 118281904.

It is not an unprimeable number, because it can be changed into a prime (118281931) 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, 5438 + ... + 16313.

It is an arithmetic number, because the mean of its divisors is an integer number (22187040).

Almost surely, 2^118281938 is an apocalyptic number.

118281938 is a deficient number, since it is larger than the sum of its proper divisors (59214382).

118281938 is a wasteful number, since it uses less digits than its factorization.

118281938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24472.

The product of its digits is 27648, while the sum is 41.

The square root of 118281938 is about 10875.7499971266. The cubic root of 118281938 is about 490.8771433235.

The spelling of 118281938 in words is "one hundred eighteen million, two hundred eighty-one thousand, nine hundred thirty-eight".