2840422856940 has 72 divisors (see below), whose sum is σ = 8618123404800. Its totient is φ = 757254968064.

The previous prime is 2840422856917. The next prime is 2840422857071. The reversal of 2840422856940 is 496582240482.

2840422856940 is a `hidden beast` number, since 2 + 8 + 40 + 422 + 85 + 69 + 40 = 666.

2840422856940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1274865 + ... + 2702984.

It is an arithmetic number, because the mean of its divisors is an integer number (119696158400).

Almost surely, 2^{2840422856940} is an apocalyptic number.

2840422856940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2840422856940 is an abundant number, since it is smaller than the sum of its proper divisors (5777700547860).

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

2840422856940 is a wasteful number, since it uses less digits than its factorization.

2840422856940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3981831 (or 3981826 counting only the distinct ones).

The product of its (nonzero) digits is 8847360, while the sum is 54.

The spelling of 2840422856940 in words is "two trillion, eight hundred forty billion, four hundred twenty-two million, eight hundred fifty-six thousand, nine hundred forty".