8920331280 has 320 divisors, whose sum is σ = 36964300800. Its totient is φ = 1931558400.

The previous prime is 8920331267. The next prime is 8920331281. The reversal of 8920331280 is 821330298.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (8920331281) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 271755 + ... + 302805.

It is an arithmetic number, because the mean of its divisors is an integer number (115513440).

Almost surely, 2^8920331280 is an apocalyptic number.

8920331280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8920331280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18482150400).

8920331280 is an abundant number, since it is smaller than the sum of its proper divisors (28043969520).

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

8920331280 is a wasteful number, since it uses less digits than its factorization.

8920331280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31099 (or 31087 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 8920331280 is about 94447.5054196774. The cubic root of 8920331280 is about 2073.9279335501.

The spelling of 8920331280 in words is "eight billion, nine hundred twenty million, three hundred thirty-one thousand, two hundred eighty".