9320990238 has 24 divisors (see below), whose sum is σ = 23080547568. Its totient is φ = 2663140032.

The previous prime is 9320990191. The next prime is 9320990257. The reversal of 9320990238 is 8320990239.

9320990238 is a `hidden beast` number, since 9 + 320 + 9 + 90 + 238 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 9320990193 and 9320990202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36987931 + ... + 36988182.

It is an arithmetic number, because the mean of its divisors is an integer number (961689482).

Almost surely, 2^9320990238 is an apocalyptic number.

9320990238 is an abundant number, since it is smaller than the sum of its proper divisors (13759557330).

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

9320990238 is a wasteful number, since it uses less digits than its factorization.

9320990238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73976128 (or 73976125 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 9320990238 is about 96545.2755861207. The cubic root of 9320990238 is about 2104.5246537169.

Subtracting from 9320990238 its reverse (8320990239), we obtain a palindrome (999999999).

The spelling of 9320990238 in words is "nine billion, three hundred twenty million, nine hundred ninety thousand, two hundred thirty-eight".