9804814020 has 96 divisors (see below), whose sum is σ = 30744268800. Its totient is φ = 2594011392.

The previous prime is 9804813989. The next prime is 9804814031. The reversal of 9804814020 is 204184089.

It is a super-2 number, since 2×9804814020² (a number of 21 digits) contains 22 as substring.

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

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, 2905 + ... + 140064.

It is an arithmetic number, because the mean of its divisors is an integer number (320252800).

Almost surely, 2^9804814020 is an apocalyptic number.

9804814020 is a gapful number since it is divisible by the number (90) 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 9804814020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15372134400).

9804814020 is an abundant number, since it is smaller than the sum of its proper divisors (20939454780).

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

9804814020 is a wasteful number, since it uses less digits than its factorization.

9804814020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143114 (or 143106 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 9804814020 is about 99019.2608536339. The cubic root of 9804814020 is about 2140.3253079285.

The spelling of 9804814020 in words is "nine billion, eight hundred four million, eight hundred fourteen thousand, twenty".