800511140 has 96 divisors (see below), whose sum is σ = 2038901760. Its totient is φ = 260006400.

The previous prime is 800511133. The next prime is 800511167. The reversal of 800511140 is 41115008.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

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, 84146 + ... + 93174.

It is an arithmetic number, because the mean of its divisors is an integer number (21238560).

Almost surely, 2^800511140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 800511140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1019450880).

800511140 is an abundant number, since it is smaller than the sum of its proper divisors (1238390620).

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

800511140 is a wasteful number, since it uses less digits than its factorization.

800511140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9093 (or 9091 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 800511140 is about 28293.3055686323. The cubic root of 800511140 is about 928.5154331069.

Adding to 800511140 its reverse (41115008), we get a palindrome (841626148).

The spelling of 800511140 in words is "eight hundred million, five hundred eleven thousand, one hundred forty".