800666262 has 64 divisors (see below), whose sum is σ = 1946246400. Its totient is φ = 241971840.

The previous prime is 800666261. The next prime is 800666299. The reversal of 800666262 is 262666008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800666261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 247278 + ... + 250494.

It is an arithmetic number, because the mean of its divisors is an integer number (30410100).

Almost surely, 2^800666262 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 800666262, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (973123200).

800666262 is an abundant number, since it is smaller than the sum of its proper divisors (1145580138).

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

800666262 is a wasteful number, since it uses less digits than its factorization.

800666262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3658 (or 3652 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 800666262 is about 28296.0467556866. The cubic root of 800666262 is about 928.5754047347.

The spelling of 800666262 in words is "eight hundred million, six hundred sixty-six thousand, two hundred sixty-two".