805495320 has 384 divisors, whose sum is σ = 3230668800. Its totient is φ = 177811200.

The previous prime is 805495319. The next prime is 805495321. The reversal of 805495320 is 23594508.

805495320 is a `hidden beast` number, since 80 + 5 + 49 + 532 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (805495319) and next prime (805495321).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805495321) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1640275 + ... + 1640765.

It is an arithmetic number, because the mean of its divisors is an integer number (8413200).

Almost surely, 2^805495320 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 805495320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1615334400).

805495320 is an abundant number, since it is smaller than the sum of its proper divisors (2425173480).

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

805495320 is a wasteful number, since it uses less digits than its factorization.

805495320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556 (or 539 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 805495320 is about 28381.2494439551. The cubic root of 805495320 is about 930.4385028871.

It can be divided in two parts, 805495 and 320, that added together give a triangular number (805815 = T₁₂₆₉).

The spelling of 805495320 in words is "eight hundred five million, four hundred ninety-five thousand, three hundred twenty".