810906018 has 32 divisors (see below), whose sum is σ = 1849309056. Its totient is φ = 234832128.

The previous prime is 810906011. The next prime is 810906043. The reversal of 810906018 is 810609018.

810906018 is a strobogrammatic number because it is the same when read upside-down.

It is a self number, because there is not a number n which added to its sum of digits gives 810906018.

It is not an unprimeable number, because it can be changed into a prime (810906011) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 304446 + ... + 307097.

It is an arithmetic number, because the mean of its divisors is an integer number (57790908).

Almost surely, 2^810906018 is an apocalyptic number.

810906018 is an abundant number, since it is smaller than the sum of its proper divisors (1038403038).

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

810906018 is a wasteful number, since it uses less digits than its factorization.

810906018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611578.

The product of its (nonzero) digits is 3456, while the sum is 33.

The square root of 810906018 is about 28476.4116068019. The cubic root of 810906018 is about 932.5171788961.

The spelling of 810906018 in words is "eight hundred ten million, nine hundred six thousand, eighteen".