9938431320 has 64 divisors (see below), whose sum is σ = 29828528640. Its totient is φ = 2649072000.

The previous prime is 9938431309. The next prime is 9938431339. The reversal of 9938431320 is 231348399.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 272145 + ... + 306495.

It is an arithmetic number, because the mean of its divisors is an integer number (466070760).

Almost surely, 2^9938431320 is an apocalyptic number.

It is an amenable number.

9938431320 is an abundant number, since it is smaller than the sum of its proper divisors (19890097320).

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

9938431320 is a wasteful number, since it uses less digits than its factorization.

9938431320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36776 (or 36772 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 9938431320 is about 99691.6812978896. The cubic root of 9938431320 is about 2150.0040612867.

The spelling of 9938431320 in words is "nine billion, nine hundred thirty-eight million, four hundred thirty-one thousand, three hundred twenty".