810008210 has 32 divisors (see below), whose sum is σ = 1594430784. Its totient is φ = 293832000.

The previous prime is 810008201. The next prime is 810008233. The reversal of 810008210 is 12800018.

810008210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×810008210² = 1312226600534808200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37565 + ... + 55055.

It is an arithmetic number, because the mean of its divisors is an integer number (49825962).

Almost surely, 2^810008210 is an apocalyptic number.

810008210 is a deficient number, since it is larger than the sum of its proper divisors (784422574).

810008210 is a wasteful number, since it uses less digits than its factorization.

810008210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17930.

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 810008210 is about 28460.6431761477. The cubic root of 810008210 is about 932.1729012050.

Adding to 810008210 its reverse (12800018), we get a palindrome (822808228).

The spelling of 810008210 in words is "eight hundred ten million, eight thousand, two hundred ten".