810000002 has 16 divisors (see below), whose sum is σ = 1402322112. Its totient is φ = 343705200.

The previous prime is 809999999. The next prime is 810000011. The reversal of 810000002 is 200000018.

It is a super-2 number, since 2×810000002² = 1312200006480000008, which contains 22 as substring.

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, 285008 + ... + 287835.

It is an arithmetic number, because the mean of its divisors is an integer number (87645132).

Almost surely, 2^810000002 is an apocalyptic number.

810000002 is a deficient number, since it is larger than the sum of its proper divisors (592322110).

810000002 is a wasteful number, since it uses less digits than its factorization.

810000002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572953.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 810000002 is about 28460.4989766518. The cubic root of 810000002 is about 932.1697525534.

Adding to 810000002 its product of nonzero digits (16), we get a palindrome (810000018).

The spelling of 810000002 in words is "eight hundred ten million, two", and thus it is an aban number.