845307320 has 128 divisors (see below), whose sum is σ = 2366159040. Its totient is φ = 267018240.

The previous prime is 845307277. The next prime is 845307329. The reversal of 845307320 is 23703548.

It is a happy number.

845307320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845307329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92894 + ... + 101586.

Almost surely, 2^845307320 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 845307320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1183079520).

845307320 is an abundant number, since it is smaller than the sum of its proper divisors (1520851720).

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

845307320 is a wasteful number, since it uses less digits than its factorization.

845307320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8745 (or 8741 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 845307320 is about 29074.1692916582. The cubic root of 845307320 is about 945.5217931480.

The spelling of 845307320 in words is "eight hundred forty-five million, three hundred seven thousand, three hundred twenty".