845020512 has 120 divisors (see below), whose sum is σ = 2840268816. Its totient is φ = 241429248.

The previous prime is 845020511. The next prime is 845020523. The reversal of 845020512 is 215020548.

It is a happy number.

845020512 is a `hidden beast` number, since 8 + 450 + 205 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845020511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5143 + ... + 41430.

Almost surely, 2^845020512 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 845020512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1420134408).

845020512 is an abundant number, since it is smaller than the sum of its proper divisors (1995248304).

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

845020512 is a wasteful number, since it uses less digits than its factorization.

845020512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46602 (or 46585 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 845020512 is about 29069.2365224820. The cubic root of 845020512 is about 945.4148443164.

The spelling of 845020512 in words is "eight hundred forty-five million, twenty thousand, five hundred twelve".