2111898942 has 48 divisors (see below), whose sum is σ = 4652144640. Its totient is φ = 692289936.

The previous prime is 2111898941. The next prime is 2111898983. The reversal of 2111898942 is 2498981112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111898941) 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, 371163 + ... + 376809.

It is an arithmetic number, because the mean of its divisors is an integer number (96919680).

Almost surely, 2^2111898942 is an apocalyptic number.

2111898942 is an abundant number, since it is smaller than the sum of its proper divisors (2540245698).

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

2111898942 is a wasteful number, since it uses less digits than its factorization.

2111898942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5997 (or 5994 counting only the distinct ones).

The product of its digits is 82944, while the sum is 45.

The square root of 2111898942 is about 45955.4016629166. The cubic root of 2111898942 is about 1282.9932678459.

The spelling of 2111898942 in words is "two billion, one hundred eleven million, eight hundred ninety-eight thousand, nine hundred forty-two".