845591472 has 120 divisors (see below), whose sum is σ = 2590548480. Its totient is φ = 255354240.

The previous prime is 845591471. The next prime is 845591491. The reversal of 845591472 is 274195548.

845591472 is a `hidden beast` number, since 84 + 559 + 14 + 7 + 2 = 666.

845591472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (845591471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 567913 + ... + 569399.

It is an arithmetic number, because the mean of its divisors is an integer number (21587904).

Almost surely, 2^845591472 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 845591472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1295274240).

845591472 is an abundant number, since it is smaller than the sum of its proper divisors (1744957008).

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

845591472 is a wasteful number, since it uses less digits than its factorization.

845591472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1871 (or 1862 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The square root of 845591472 is about 29079.0555555025. The cubic root of 845591472 is about 945.6277277207.

The spelling of 845591472 in words is "eight hundred forty-five million, five hundred ninety-one thousand, four hundred seventy-two".