840114338309 has 4 divisors (see below), whose sum is σ = 840173711916. Its totient is φ = 840054964704.

The previous prime is 840114338281. The next prime is 840114338377. The reversal of 840114338309 is 903833411048.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 136733550625 + 703380787684 = 369775^2 + 838678^2 .

It is a cyclic number.

It is not a de Polignac number, because 840114338309 - 2¹⁶ = 840114272773 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 840114338309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840114338009) 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, 29665574 + ... + 29693879.

It is an arithmetic number, because the mean of its divisors is an integer number (210043427979).

Almost surely, 2^840114338309 is an apocalyptic number.

It is an amenable number.

840114338309 is a deficient number, since it is larger than the sum of its proper divisors (59373607).

840114338309 is a wasteful number, since it uses less digits than its factorization.

840114338309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59373606.

The product of its (nonzero) digits is 248832, while the sum is 44.

The spelling of 840114338309 in words is "eight hundred forty billion, one hundred fourteen million, three hundred thirty-eight thousand, three hundred nine".