9890330928 has 80 divisors (see below), whose sum is σ = 26182252800. Its totient is φ = 3215423232.

The previous prime is 9890330881. The next prime is 9890330987. The reversal of 9890330928 is 8290330989.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1592373 + ... + 1598571.

It is an arithmetic number, because the mean of its divisors is an integer number (327278160).

Almost surely, 2^9890330928 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 9890330928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13091126400).

9890330928 is an abundant number, since it is smaller than the sum of its proper divisors (16291921872).

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

9890330928 is a wasteful number, since it uses less digits than its factorization.

9890330928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7026 (or 7020 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 51.

The square root of 9890330928 is about 99450.1429259908. The cubic root of 9890330928 is about 2146.5298937244.

The spelling of 9890330928 in words is "nine billion, eight hundred ninety million, three hundred thirty thousand, nine hundred twenty-eight".