2018888892 has 18 divisors (see below), whose sum is σ = 5103302568. Its totient is φ = 672962952.

The previous prime is 2018888881. The next prime is 2018888897. The reversal of 2018888892 is 2988888102.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2018888897) 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 5 ways as a sum of consecutive naturals, for example, 28040088 + ... + 28040159.

Almost surely, 2^2018888892 is an apocalyptic number.

It is an amenable number.

2018888892 is an abundant number, since it is smaller than the sum of its proper divisors (3084413676).

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

2018888892 is a wasteful number, since it uses less digits than its factorization.

2018888892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56080257 (or 56080252 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 54.

The square root of 2018888892 is about 44932.0474939658. The cubic root of 2018888892 is about 1263.8750469001.

The spelling of 2018888892 in words is "two billion, eighteen million, eight hundred eighty-eight thousand, eight hundred ninety-two".