811000480 has 48 divisors (see below), whose sum is σ = 1917767880. Its totient is φ = 324099072.

The previous prime is 811000417. The next prime is 811000483. The reversal of 811000480 is 84000118.

It can be written as a sum of positive squares in 4 ways, for example, as 759333136 + 51667344 = 27556^2 + 7188^2 .

It is not an unprimeable number, because it can be changed into a prime (811000483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265522 + ... + 268558.

Almost surely, 2^811000480 is an apocalyptic number.

811000480 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

811000480 is an abundant number, since it is smaller than the sum of its proper divisors (1106767400).

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

811000480 is a wasteful number, since it uses less digits than its factorization.

811000480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4721 (or 4713 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

The square root of 811000480 is about 28478.0701593349. The cubic root of 811000480 is about 932.5533869628.

Adding to 811000480 its reverse (84000118), we get a palindrome (895000598).

The spelling of 811000480 in words is "eight hundred eleven million, four hundred eighty", and thus it is an aban number.