2311942842 has 48 divisors (see below), whose sum is σ = 5702194368. Its totient is φ = 670127040.

The previous prime is 2311942813. The next prime is 2311942847. The reversal of 2311942842 is 2482491132.

It is a junction number, because it is equal to n+sod(n) for n = 2311942797 and 2311942806.

It is not an unprimeable number, because it can be changed into a prime (2311942847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 249283 + ... + 258390.

It is an arithmetic number, because the mean of its divisors is an integer number (118795716).

Almost surely, 2^2311942842 is an apocalyptic number.

2311942842 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2311942842 is an abundant number, since it is smaller than the sum of its proper divisors (3390251526).

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

2311942842 is a wasteful number, since it uses less digits than its factorization.

2311942842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507715 (or 507712 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 2311942842 is about 48082.6667521676. Note that the first 3 decimals coincide. The cubic root of 2311942842 is about 1322.2869068460.

The spelling of 2311942842 in words is "two billion, three hundred eleven million, nine hundred forty-two thousand, eight hundred forty-two".