844045320 has 64 divisors (see below), whose sum is σ = 2541248640. Its totient is φ = 224268800.

The previous prime is 844045313. The next prime is 844045333. The reversal of 844045320 is 23540448.

844045320 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21205 + ... + 46235.

It is an arithmetic number, because the mean of its divisors is an integer number (39707010).

Almost surely, 2^844045320 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 844045320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1270624320).

844045320 is an abundant number, since it is smaller than the sum of its proper divisors (1697203320).

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

844045320 is a wasteful number, since it uses less digits than its factorization.

844045320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25326 (or 25322 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 844045320 is about 29052.4580715643. The cubic root of 844045320 is about 945.0510204530.

Adding to 844045320 its reverse (23540448), we get a palindrome (867585768).

It can be divided in two parts, 84 and 4045320, that added together give a palindrome (4045404).

The spelling of 844045320 in words is "eight hundred forty-four million, forty-five thousand, three hundred twenty".