810204 has 24 divisors (see below), whose sum is σ = 1911168. Its totient is φ = 267120.

The previous prime is 810193. The next prime is 810209. The reversal of 810204 is 402018.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (810209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 969 + ... + 1599.

It is an arithmetic number, because the mean of its divisors is an integer number (79632).

2⁸¹⁰²⁰⁴ is an apocalyptic number.

It is an amenable number.

810204 is an abundant number, since it is smaller than the sum of its proper divisors (1100964).

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

810204 is a wasteful number, since it uses less digits than its factorization.

810204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745 (or 743 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 810204 is about 900.1133261984. The cubic root of 810204 is about 93.2248001443.

The spelling of 810204 in words is "eight hundred ten thousand, two hundred four".