3123029988 has 36 divisors (see below), whose sum is σ = 8501582908. Its totient is φ = 960932160.

The previous prime is 3123029977. The next prime is 3123030011. The reversal of 3123029988 is 8899203213.

It can be written as a sum of positive squares in 2 ways, for example, as 237406464 + 2885623524 = 15408^2 + 53718^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3336103 + ... + 3337038.

Almost surely, 2^3123029988 is an apocalyptic number.

It is an amenable number.

3123029988 is an abundant number, since it is smaller than the sum of its proper divisors (5378552920).

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

3123029988 is a wasteful number, since it uses less digits than its factorization.

3123029988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6673164 (or 6673159 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 3123029988 is about 55884.0763366453. The cubic root of 3123029988 is about 1461.7015858581.

The spelling of 3123029988 in words is "three billion, one hundred twenty-three million, twenty-nine thousand, nine hundred eighty-eight".