809812022 has 8 divisors (see below), whose sum is σ = 1218388872. Its totient is φ = 403682400.

The previous prime is 809811997. The next prime is 809812043. The reversal of 809812022 is 220218908.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×809812022³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 809812022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 610979 + ... + 612302.

It is an arithmetic number, because the mean of its divisors is an integer number (152298609).

Almost surely, 2^809812022 is an apocalyptic number.

809812022 is a deficient number, since it is larger than the sum of its proper divisors (408576850).

809812022 is a wasteful number, since it uses less digits than its factorization.

809812022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223614.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 809812022 is about 28457.1963130594. The cubic root of 809812022 is about 932.0976361637.

The spelling of 809812022 in words is "eight hundred nine million, eight hundred twelve thousand, twenty-two".