805020330 has 16 divisors (see below), whose sum is σ = 1932048864. Its totient is φ = 214672080.

The previous prime is 805020319. The next prime is 805020331. The reversal of 805020330 is 33020508.

It is a junction number, because it is equal to n+sod(n) for n = 805020297 and 805020306.

It is not an unprimeable number, because it can be changed into a prime (805020331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13416976 + ... + 13417035.

It is an arithmetic number, because the mean of its divisors is an integer number (120753054).

Almost surely, 2^805020330 is an apocalyptic number.

805020330 is an abundant number, since it is smaller than the sum of its proper divisors (1127028534).

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

805020330 is a wasteful number, since it uses less digits than its factorization.

805020330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26834021.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 805020330 is about 28372.8801851345. The cubic root of 805020330 is about 930.2555778088.

Adding to 805020330 its reverse (33020508), we get a palindrome (838040838).

The spelling of 805020330 in words is "eight hundred five million, twenty thousand, three hundred thirty".