1118376138 has 48 divisors (see below), whose sum is σ = 2588009760. Its totient is φ = 321060960.

The previous prime is 1118376137. The next prime is 1118376179. The reversal of 1118376138 is 8316738111.

It is a junction number, because it is equal to n+sod(n) for n = 1118376096 and 1118376105.

It is not an unprimeable number, because it can be changed into a prime (1118376137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26745 + ... + 54332.

It is an arithmetic number, because the mean of its divisors is an integer number (53916870).

Almost surely, 2^1118376138 is an apocalyptic number.

1118376138 is an abundant number, since it is smaller than the sum of its proper divisors (1469633622).

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

1118376138 is a wasteful number, since it uses less digits than its factorization.

1118376138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81123 (or 81112 counting only the distinct ones).

The product of its digits is 24192, while the sum is 39.

The square root of 1118376138 is about 33442.1311820883. The cubic root of 1118376138 is about 1037.9966791671.

The spelling of 1118376138 in words is "one billion, one hundred eighteen million, three hundred seventy-six thousand, one hundred thirty-eight".