8730021888 has 468 divisors, whose sum is σ = 30590436240. Its totient is φ = 2480357376.

The previous prime is 8730021877. The next prime is 8730021889. The reversal of 8730021888 is 8881200378.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (8730021889) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 48770983 + ... + 48771161.

It is an arithmetic number, because the mean of its divisors is an integer number (65364180).

Almost surely, 2^8730021888 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 8730021888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15295218120).

8730021888 is an abundant number, since it is smaller than the sum of its proper divisors (21860414352).

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

8730021888 is an equidigital number, since it uses as much as digits as its factorization.

8730021888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 45.

The square root of 8730021888 is about 93434.5861445322. The cubic root of 8730021888 is about 2059.0731595792.

The spelling of 8730021888 in words is "eight billion, seven hundred thirty million, twenty-one thousand, eight hundred eighty-eight".