840343413 has 32 divisors (see below), whose sum is σ = 1399638016. Its totient is φ = 436632768.

The previous prime is 840343397. The next prime is 840343417. The reversal of 840343413 is 314343048.

It is not a de Polignac number, because 840343413 - 2⁴ = 840343397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840343417) 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 31 ways as a sum of consecutive naturals, for example, 4681 + ... + 41262.

It is an arithmetic number, because the mean of its divisors is an integer number (43738688).

Almost surely, 2^840343413 is an apocalyptic number.

It is an amenable number.

840343413 is a deficient number, since it is larger than the sum of its proper divisors (559294603).

840343413 is a wasteful number, since it uses less digits than its factorization.

840343413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46033.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 840343413 is about 28988.6773240864. The cubic root of 840343413 is about 943.6673592944.

The spelling of 840343413 in words is "eight hundred forty million, three hundred forty-three thousand, four hundred thirteen".