840004315 has 8 divisors (see below), whose sum is σ = 1008653040. Its totient is φ = 671571552.

The previous prime is 840004313. The next prime is 840004327. The reversal of 840004315 is 513400048.

840004315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 840004315 - 2¹ = 840004313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 840004315.

It is not an unprimeable number, because it can be changed into a prime (840004313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45304 + ... + 61093.

It is an arithmetic number, because the mean of its divisors is an integer number (126081630).

Almost surely, 2^840004315 is an apocalyptic number.

840004315 is a deficient number, since it is larger than the sum of its proper divisors (168648725).

840004315 is a wasteful number, since it uses less digits than its factorization.

840004315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107981.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 840004315 is about 28982.8279331055. The cubic root of 840004315 is about 943.5404116835.

The spelling of 840004315 in words is "eight hundred forty million, four thousand, three hundred fifteen".