9990305480 has 64 divisors (see below), whose sum is σ = 22770100080. Its totient is φ = 3944448000.

The previous prime is 9990305473. The next prime is 9990305503. The reversal of 9990305480 is 845030999.

It can be written as a sum of positive squares in 8 ways, for example, as 6285635524 + 3704669956 = 79282^2 + 60866^2 .

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, 1552670 + ... + 1559090.

Almost surely, 2^9990305480 is an apocalyptic number.

It is an amenable number.

9990305480 is an abundant number, since it is smaller than the sum of its proper divisors (12779794600).

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

9990305480 is a wasteful number, since it uses less digits than its factorization.

9990305480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6930 (or 6926 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 9990305480 is about 99951.5156463372. The cubic root of 9990305480 is about 2153.7382579245.

The spelling of 9990305480 in words is "nine billion, nine hundred ninety million, three hundred five thousand, four hundred eighty".