2000011988 has 24 divisors (see below), whose sum is σ = 3990975912. Its totient is φ = 868783104.

The previous prime is 2000011987. The next prime is 2000012017. The reversal of 2000011988 is 8891100002.

It can be written as a sum of positive squares in 4 ways, for example, as 877225924 + 1122786064 = 29618^2 + 33508^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2000011988.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000011987) 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 7 ways as a sum of consecutive naturals, for example, 1130345 + ... + 1132112.

It is an arithmetic number, because the mean of its divisors is an integer number (166290663).

Almost surely, 2^2000011988 is an apocalyptic number.

It is an amenable number.

2000011988 is a deficient number, since it is larger than the sum of its proper divisors (1990963924).

2000011988 is a wasteful number, since it uses less digits than its factorization.

2000011988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2262491 (or 2262489 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 2000011988 is about 44721.4935797095. The cubic root of 2000011988 is about 1259.9235672121.

The spelling of 2000011988 in words is "two billion, eleven thousand, nine hundred eighty-eight".