8440843794 has 16 divisors (see below), whose sum is σ = 16884579168. Its totient is φ = 2813132672.

The previous prime is 8440843793. The next prime is 8440843813. The reversal of 8440843794 is 4973480448.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (8440843793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81567 + ... + 153410.

It is an arithmetic number, because the mean of its divisors is an integer number (1055286198).

Almost surely, 2^8440843794 is an apocalyptic number.

8440843794 is an abundant number, since it is smaller than the sum of its proper divisors (8443735374).

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

8440843794 is a wasteful number, since it uses less digits than its factorization.

8440843794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240969.

The product of its (nonzero) digits is 3096576, while the sum is 51.

The square root of 8440843794 is about 91874.0648605470. The cubic root of 8440843794 is about 2036.0821088788.

The spelling of 8440843794 in words is "eight billion, four hundred forty million, eight hundred forty-three thousand, seven hundred ninety-four".