812005332 has 24 divisors (see below), whose sum is σ = 1903032096. Its totient is φ = 269475168.

The previous prime is 812005319. The next prime is 812005393. The reversal of 812005332 is 233500218.

812005332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146323 + ... + 151770.

It is an arithmetic number, because the mean of its divisors is an integer number (79293004).

Almost surely, 2^812005332 is an apocalyptic number.

It is an amenable number.

812005332 is an abundant number, since it is smaller than the sum of its proper divisors (1091026764).

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

812005332 is a wasteful number, since it uses less digits than its factorization.

812005332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298327 (or 298325 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 812005332 is about 28495.7072556552. The cubic root of 812005332 is about 932.9383811370.

The spelling of 812005332 in words is "eight hundred twelve million, five thousand, three hundred thirty-two".