9988000938 has 24 divisors (see below), whose sum is σ = 21642598848. Its totient is φ = 3329036712.

The previous prime is 9988000937. The next prime is 9988000943. The reversal of 9988000938 is 8390008899.

It is not an unprimeable number, because it can be changed into a prime (9988000931) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 292845 + ... + 325167.

It is an arithmetic number, because the mean of its divisors is an integer number (901774952).

Almost surely, 2^9988000938 is an apocalyptic number.

9988000938 is an abundant number, since it is smaller than the sum of its proper divisors (11654597910).

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

9988000938 is a wasteful number, since it uses less digits than its factorization.

9988000938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49498 (or 49495 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The square root of 9988000938 is about 99939.9866820083. The cubic root of 9988000938 is about 2153.5726386323.

The spelling of 9988000938 in words is "nine billion, nine hundred eighty-eight million, nine hundred thirty-eight", and thus it is an aban number.