805998120 has 32 divisors (see below), whose sum is σ = 2417994720. Its totient is φ = 214932800.

The previous prime is 805998091. The next prime is 805998133. The reversal of 805998120 is 21899508.

It is a happy number.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3358206 + ... + 3358445.

It is an arithmetic number, because the mean of its divisors is an integer number (75562335).

Almost surely, 2^805998120 is an apocalyptic number.

It is an amenable number.

805998120 is an abundant number, since it is smaller than the sum of its proper divisors (1611996600).

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

805998120 is a wasteful number, since it uses less digits than its factorization.

805998120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6716665 (or 6716661 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 42.

The square root of 805998120 is about 28390.1060230496. The cubic root of 805998120 is about 930.6320596386.

The spelling of 805998120 in words is "eight hundred five million, nine hundred ninety-eight thousand, one hundred twenty".