805580040 has 64 divisors (see below), whose sum is σ = 2440704960. Its totient is φ = 212691200.

The previous prime is 805580033. The next prime is 805580057. The reversal of 805580040 is 40085508.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21114 + ... + 45353.

It is an arithmetic number, because the mean of its divisors is an integer number (38136015).

Almost surely, 2^805580040 is an apocalyptic number.

It is an amenable number.

805580040 is an abundant number, since it is smaller than the sum of its proper divisors (1635124920).

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

805580040 is a wasteful number, since it uses less digits than its factorization.

805580040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66582 (or 66578 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 805580040 is about 28382.7419394251. The cubic root of 805580040 is about 930.4711221482.

The spelling of 805580040 in words is "eight hundred five million, five hundred eighty thousand, forty".