812733480 has 256 divisors, whose sum is σ = 2950214400. Its totient is φ = 197821440.

The previous prime is 812733473. The next prime is 812733503. The reversal of 812733480 is 84337218.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1502010 + ... + 1502550.

It is an arithmetic number, because the mean of its divisors is an integer number (11524275).

Almost surely, 2^812733480 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 812733480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1475107200).

812733480 is an abundant number, since it is smaller than the sum of its proper divisors (2137480920).

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

812733480 is a wasteful number, since it uses less digits than its factorization.

812733480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681 (or 671 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 812733480 is about 28508.4808434262. The cubic root of 812733480 is about 933.2171618447.

The spelling of 812733480 in words is "eight hundred twelve million, seven hundred thirty-three thousand, four hundred eighty".