845410720 has 144 divisors (see below), whose sum is σ = 2534843808. Its totient is φ = 263477760.

The previous prime is 845410673. The next prime is 845410739. The reversal of 845410720 is 27014548.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81339 + ... + 91141.

It is an arithmetic number, because the mean of its divisors is an integer number (17603082).

Almost surely, 2^845410720 is an apocalyptic number.

845410720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 845410720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1267421904).

845410720 is an abundant number, since it is smaller than the sum of its proper divisors (1689433088).

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

845410720 is a wasteful number, since it uses less digits than its factorization.

845410720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9843 (or 9828 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 845410720 is about 29075.9474480196. The cubic root of 845410720 is about 945.5603444003.

The spelling of 845410720 in words is "eight hundred forty-five million, four hundred ten thousand, seven hundred twenty".