856800330 has 32 divisors (see below), whose sum is σ = 2079432000. Its totient is φ = 225912192.

The previous prime is 856800299. The next prime is 856800337. The reversal of 856800330 is 33008658.

It is a junction number, because it is equal to n+sod(n) for n = 856800291 and 856800300.

It is not an unprimeable number, because it can be changed into a prime (856800337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157780 + ... + 163119.

It is an arithmetic number, because the mean of its divisors is an integer number (64982250).

Almost surely, 2^856800330 is an apocalyptic number.

856800330 is an abundant number, since it is smaller than the sum of its proper divisors (1222631670).

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

856800330 is a wasteful number, since it uses less digits than its factorization.

856800330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320998.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 856800330 is about 29271.1518393110. The cubic root of 856800330 is about 949.7877014065.

Adding to 856800330 its reverse (33008658), we get a palindrome (889808988).

The spelling of 856800330 in words is "eight hundred fifty-six million, eight hundred thousand, three hundred thirty".