812084740 has 24 divisors (see below), whose sum is σ = 1706225472. Its totient is φ = 324672480.

The previous prime is 812084737. The next prime is 812084803. The reversal of 812084740 is 47480218.

It is a junction number, because it is equal to n+sod(n) for n = 812084696 and 812084705.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36385 + ... + 54295.

It is an arithmetic number, because the mean of its divisors is an integer number (71092728).

Almost surely, 2^812084740 is an apocalyptic number.

It is an amenable number.

812084740 is an abundant number, since it is smaller than the sum of its proper divisors (894140732).

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

812084740 is a wasteful number, since it uses less digits than its factorization.

812084740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20187 (or 20185 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 812084740 is about 28497.1005542669. The cubic root of 812084740 is about 932.9687915926.

The spelling of 812084740 in words is "eight hundred twelve million, eighty-four thousand, seven hundred forty".