9321162240 has 320 divisors, whose sum is σ = 32482296000. Its totient is φ = 2266497024.

The previous prime is 9321162239. The next prime is 9321162287. The reversal of 9321162240 is 422611239.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 9321162198 and 9321162207.

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 31 ways as a sum of consecutive naturals, for example, 8885236 + ... + 8886284.

It is an arithmetic number, because the mean of its divisors is an integer number (101507175).

Almost surely, 2^9321162240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9321162240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16241148000).

9321162240 is an abundant number, since it is smaller than the sum of its proper divisors (23161133760).

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

9321162240 is a wasteful number, since it uses less digits than its factorization.

9321162240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177 (or 1161 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 9321162240 is about 96546.1663661484. The cubic root of 9321162240 is about 2104.5375987014.

Adding to 9321162240 its reverse (422611239), we get a palindrome (9743773479).

The spelling of 9321162240 in words is "nine billion, three hundred twenty-one million, one hundred sixty-two thousand, two hundred forty".