810620328 has 96 divisors (see below), whose sum is σ = 2370060000. Its totient is φ = 230364288.

The previous prime is 810620311. The next prime is 810620329. The reversal of 810620328 is 823026018.

It is a junction number, because it is equal to n+sod(n) for n = 810620295 and 810620304.

It is not an unprimeable number, because it can be changed into a prime (810620329) 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 23 ways as a sum of consecutive naturals, for example, 229923 + ... + 233421.

It is an arithmetic number, because the mean of its divisors is an integer number (24688125).

Almost surely, 2^810620328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 810620328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1185030000).

810620328 is an abundant number, since it is smaller than the sum of its proper divisors (1559439672).

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

810620328 is a wasteful number, since it uses less digits than its factorization.

810620328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3719 (or 3708 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 810620328 is about 28471.3949078720. The cubic root of 810620328 is about 932.4076544385.

The spelling of 810620328 in words is "eight hundred ten million, six hundred twenty thousand, three hundred twenty-eight".