820884448 has 24 divisors (see below), whose sum is σ = 1653703128. Its totient is φ = 400896384.

The previous prime is 820884403. The next prime is 820884451. The reversal of 820884448 is 844488028.

It is a junction number, because it is equal to n+sod(n) for n = 820884398 and 820884407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 296911 + ... + 299662.

It is an arithmetic number, because the mean of its divisors is an integer number (68904297).

Almost surely, 2^820884448 is an apocalyptic number.

It is an amenable number.

820884448 is an abundant number, since it is smaller than the sum of its proper divisors (832818680).

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

820884448 is a wasteful number, since it uses less digits than its factorization.

820884448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596626 (or 596618 counting only the distinct ones).

The product of its (nonzero) digits is 524288, while the sum is 46.

The square root of 820884448 is about 28651.0810965311. The cubic root of 820884448 is about 936.3265595387.

The spelling of 820884448 in words is "eight hundred twenty million, eight hundred eighty-four thousand, four hundred forty-eight".