9938394392 has 16 divisors (see below), whose sum is σ = 19444685040. Its totient is φ = 4753145056.

The previous prime is 9938394379. The next prime is 9938394407. The reversal of 9938394392 is 2934938399.

9938394392 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 27006323 + ... + 27006690.

It is an arithmetic number, because the mean of its divisors is an integer number (1215292815).

Almost surely, 2^9938394392 is an apocalyptic number.

9938394392 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

9938394392 is a deficient number, since it is larger than the sum of its proper divisors (9506290648).

9938394392 is a wasteful number, since it uses less digits than its factorization.

9938394392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54013042 (or 54013038 counting only the distinct ones).

The product of its digits is 11337408, while the sum is 59.

The square root of 9938394392 is about 99691.4960866773. The cubic root of 9938394392 is about 2150.0013983766.

The spelling of 9938394392 in words is "nine billion, nine hundred thirty-eight million, three hundred ninety-four thousand, three hundred ninety-two".