840030000243 has 64 divisors (see below), whose sum is σ = 1317148664832. Its totient is φ = 466234030080.

The previous prime is 840030000241. The next prime is 840030000287. The reversal of 840030000243 is 342000030048.

It is not a de Polignac number, because 840030000243 - 2¹ = 840030000241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (840030000241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 197141733 + ... + 197145993.

It is an arithmetic number, because the mean of its divisors is an integer number (20580447888).

Almost surely, 2^840030000243 is an apocalyptic number.

840030000243 is a deficient number, since it is larger than the sum of its proper divisors (477118664589).

840030000243 is a wasteful number, since it uses less digits than its factorization.

840030000243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5484.

The product of its (nonzero) digits is 2304, while the sum is 24.

The spelling of 840030000243 in words is "eight hundred forty billion, thirty million, two hundred forty-three", and thus it is an aban number.