9002808220 has 144 divisors (see below), whose sum is σ = 22670299008. Its totient is φ = 2993034240.

The previous prime is 9002808203. The next prime is 9002808223. The reversal of 9002808220 is 228082009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9002808223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4362909 + ... + 4364971.

It is an arithmetic number, because the mean of its divisors is an integer number (157432632).

Almost surely, 2^9002808220 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 9002808220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11335149504).

9002808220 is an abundant number, since it is smaller than the sum of its proper divisors (13667490788).

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

9002808220 is a wasteful number, since it uses less digits than its factorization.

9002808220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2220 (or 2211 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 9002808220 is about 94883.1292696441. The cubic root of 9002808220 is about 2080.3001462205.

The spelling of 9002808220 in words is "nine billion, two million, eight hundred eight thousand, two hundred twenty".