840204034284 has 48 divisors (see below), whose sum is σ = 2008834944480. Its totient is φ = 273163292160.

The previous prime is 840204034277. The next prime is 840204034309. The reversal of 840204034284 is 482430402048.

It is a super-3 number, since 3×840204034284³ (a number of 37 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1607902 + ... + 2065370.

It is an arithmetic number, because the mean of its divisors is an integer number (41850728010).

Almost surely, 2^840204034284 is an apocalyptic number.

It is an amenable number.

840204034284 is an abundant number, since it is smaller than the sum of its proper divisors (1168630910196).

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

840204034284 is a wasteful number, since it uses less digits than its factorization.

840204034284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461250 (or 461248 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 39.

The spelling of 840204034284 in words is "eight hundred forty billion, two hundred four million, thirty-four thousand, two hundred eighty-four".