800123218 has 16 divisors (see below), whose sum is σ = 1268225280. Its totient is φ = 377822016.

The previous prime is 800123201. The next prime is 800123227. The reversal of 800123218 is 812321008.

It is a junction number, because it is equal to n+sod(n) for n = 800123192 and 800123201.

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, 106455 + ... + 113722.

It is an arithmetic number, because the mean of its divisors is an integer number (79264080).

Almost surely, 2^800123218 is an apocalyptic number.

800123218 is a deficient number, since it is larger than the sum of its proper divisors (468102062).

800123218 is a wasteful number, since it uses less digits than its factorization.

800123218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220281.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 800123218 is about 28286.4493706792. The cubic root of 800123218 is about 928.3654248836.

The spelling of 800123218 in words is "eight hundred million, one hundred twenty-three thousand, two hundred eighteen".