9904452228 has 120 divisors (see below), whose sum is σ = 28450662240. Its totient is φ = 2979607680.

The previous prime is 9904452193. The next prime is 9904452253. The reversal of 9904452228 is 8222544099.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 485400 + ... + 505392.

It is an arithmetic number, because the mean of its divisors is an integer number (237088852).

Almost surely, 2^9904452228 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 9904452228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14225331120).

9904452228 is an abundant number, since it is smaller than the sum of its proper divisors (18546210012).

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

9904452228 is a wasteful number, since it uses less digits than its factorization.

9904452228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20159 (or 20148 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 9904452228 is about 99521.1144833095. The cubic root of 9904452228 is about 2147.5510047457.

The spelling of 9904452228 in words is "nine billion, nine hundred four million, four hundred fifty-two thousand, two hundred twenty-eight".