8340433905 has 16 divisors (see below), whose sum is σ = 13775169024. Its totient is φ = 4304739840.

The previous prime is 8340433891. The next prime is 8340433909. The reversal of 8340433905 is 5093340438.

It is not a de Polignac number, because 8340433905 - 2⁶ = 8340433841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8340433909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8967744 + ... + 8968673.

It is an arithmetic number, because the mean of its divisors is an integer number (860948064).

Almost surely, 2^8340433905 is an apocalyptic number.

It is an amenable number.

8340433905 is a deficient number, since it is larger than the sum of its proper divisors (5434735119).

8340433905 is a wasteful number, since it uses less digits than its factorization.

8340433905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17936456.

The product of its (nonzero) digits is 155520, while the sum is 39.

The square root of 8340433905 is about 91325.9760692433. The cubic root of 8340433905 is about 2027.9763298690.

The spelling of 8340433905 in words is "eight billion, three hundred forty million, four hundred thirty-three thousand, nine hundred five".