840129303 has 16 divisors (see below), whose sum is σ = 1258790400. Its totient is φ = 494523744.

The previous prime is 840129293. The next prime is 840129461. The reversal of 840129303 is 303921048.

840129303 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 840129303 - 2⁹ = 840128791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840129503) 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, 467403 + ... + 469196.

It is an arithmetic number, because the mean of its divisors is an integer number (78674400).

Almost surely, 2^840129303 is an apocalyptic number.

840129303 is a deficient number, since it is larger than the sum of its proper divisors (418661097).

840129303 is a wasteful number, since it uses less digits than its factorization.

840129303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936638.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 840129303 is about 28984.9840952173. The cubic root of 840129303 is about 943.5872072290.

The spelling of 840129303 in words is "eight hundred forty million, one hundred twenty-nine thousand, three hundred three".