840315785430 has 64 divisors (see below), whose sum is σ = 2204508960000. Its totient is φ = 203304635520.

The previous prime is 840315785357. The next prime is 840315785443. The reversal of 840315785430 is 34587513048.

840315785430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×840315785430² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 840315785430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2386845 + ... + 2716184.

It is an arithmetic number, because the mean of its divisors is an integer number (34445452500).

Almost surely, 2^840315785430 is an apocalyptic number.

840315785430 is an abundant number, since it is smaller than the sum of its proper divisors (1364193174570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

840315785430 is a wasteful number, since it uses less digits than its factorization.

840315785430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5103549.

The product of its (nonzero) digits is 1612800, while the sum is 48.

The spelling of 840315785430 in words is "eight hundred forty billion, three hundred fifteen million, seven hundred eighty-five thousand, four hundred thirty".