9389972120 has 32 divisors (see below), whose sum is σ = 21130200000. Its totient is φ = 3755497728.

The previous prime is 9389972093. The next prime is 9389972129. The reversal of 9389972120 is 212799839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9389972129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 569756 + ... + 586004.

It is an arithmetic number, because the mean of its divisors is an integer number (660318750).

Almost surely, 2^9389972120 is an apocalyptic number.

It is an amenable number.

9389972120 is an abundant number, since it is smaller than the sum of its proper divisors (11740227880).

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

9389972120 is a wasteful number, since it uses less digits than its factorization.

9389972120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30707 (or 30703 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 50.

The square root of 9389972120 is about 96901.8685062368. The cubic root of 9389972120 is about 2109.7035529106.

The spelling of 9389972120 in words is "nine billion, three hundred eighty-nine million, nine hundred seventy-two thousand, one hundred twenty".