805486380 has 96 divisors (see below), whose sum is σ = 2406835200. Its totient is φ = 200683008.

The previous prime is 805486379. The next prime is 805486387. The reversal of 805486380 is 83684508.

It is not an unprimeable number, because it can be changed into a prime (805486387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78381 + ... + 88059.

It is an arithmetic number, because the mean of its divisors is an integer number (25071200).

Almost surely, 2^805486380 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 805486380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1203417600).

805486380 is an abundant number, since it is smaller than the sum of its proper divisors (1601348820).

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

805486380 is a wasteful number, since it uses less digits than its factorization.

805486380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9783 (or 9781 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 805486380 is about 28381.0919451666. The cubic root of 805486380 is about 930.4350606362.

The spelling of 805486380 in words is "eight hundred five million, four hundred eighty-six thousand, three hundred eighty".