820804230 has 48 divisors (see below), whose sum is σ = 2145924144. Its totient is φ = 217667520.

The previous prime is 820804223. The next prime is 820804279. The reversal of 820804230 is 32408028.

820804230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 820804194 and 820804203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8904 + ... + 41483.

It is an arithmetic number, because the mean of its divisors is an integer number (44706753).

Almost surely, 2^820804230 is an apocalyptic number.

820804230 is an abundant number, since it is smaller than the sum of its proper divisors (1325119914).

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

820804230 is a wasteful number, since it uses less digits than its factorization.

820804230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50581 (or 50578 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 820804230 is about 28649.6811500582. The cubic root of 820804230 is about 936.2960588225.

The spelling of 820804230 in words is "eight hundred twenty million, eight hundred four thousand, two hundred thirty".