9898004480 has 416 divisors, whose sum is σ = 30119814144. Its totient is φ = 3038773248.

The previous prime is 9898004449. The next prime is 9898004497. The reversal of 9898004480 is 844008989.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (416).

It is a super-2 number, since 2×9898004480² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87592904 + ... + 87593016.

Almost surely, 2^9898004480 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 9898004480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15059907072).

9898004480 is an abundant number, since it is smaller than the sum of its proper divisors (20221809664).

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

9898004480 is a wasteful number, since it uses less digits than its factorization.

9898004480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 50.

The square root of 9898004480 is about 99488.7153399822. The cubic root of 9898004480 is about 2147.0848886594.

The spelling of 9898004480 in words is "nine billion, eight hundred ninety-eight million, four thousand, four hundred eighty".