805789340 has 12 divisors (see below), whose sum is σ = 1692157656. Its totient is φ = 322315728.

The previous prime is 805789339. The next prime is 805789343. The reversal of 805789340 is 43987508.

It is a junction number, because it is equal to n+sod(n) for n = 805789291 and 805789300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805789343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20144714 + ... + 20144753.

It is an arithmetic number, because the mean of its divisors is an integer number (141013138).

Almost surely, 2^805789340 is an apocalyptic number.

It is an amenable number.

805789340 is an abundant number, since it is smaller than the sum of its proper divisors (886368316).

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

805789340 is a wasteful number, since it uses less digits than its factorization.

805789340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40289476 (or 40289474 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 805789340 is about 28386.4287996923. The cubic root of 805789340 is about 930.5516979374.

The spelling of 805789340 in words is "eight hundred five million, seven hundred eighty-nine thousand, three hundred forty".