9890432488 has 16 divisors (see below), whose sum is σ = 18562563360. Its totient is φ = 4940415600.

The previous prime is 9890432443. The next prime is 9890432581. The reversal of 9890432488 is 8842340989.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 591318 + ... + 607813.

It is an arithmetic number, because the mean of its divisors is an integer number (1160160210).

Almost surely, 2^9890432488 is an apocalyptic number.

It is an amenable number.

9890432488 is a deficient number, since it is larger than the sum of its proper divisors (8672130872).

9890432488 is a wasteful number, since it uses less digits than its factorization.

9890432488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200168 (or 1200164 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 55.

The square root of 9890432488 is about 99450.6535322921. The cubic root of 9890432488 is about 2146.5372409956.

The spelling of 9890432488 in words is "nine billion, eight hundred ninety million, four hundred thirty-two thousand, four hundred eighty-eight".