805040118 has 24 divisors (see below), whose sum is σ = 1745649048. Its totient is φ = 268132032.

The previous prime is 805040113. The next prime is 805040129. The reversal of 805040118 is 811040508.

It is a junction number, because it is equal to n+sod(n) for n = 805040091 and 805040100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805040113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6105 + ... + 40587.

It is an arithmetic number, because the mean of its divisors is an integer number (72735377).

Almost surely, 2^805040118 is an apocalyptic number.

805040118 is an abundant number, since it is smaller than the sum of its proper divisors (940608930).

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

805040118 is a wasteful number, since it uses less digits than its factorization.

805040118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35788 (or 35785 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 805040118 is about 28373.2288962677. The cubic root of 805040118 is about 930.2631998716.

The spelling of 805040118 in words is "eight hundred five million, forty thousand, one hundred eighteen".