9810220 has 48 divisors (see below), whose sum is σ = 23869440. Its totient is φ = 3317184.

The previous prime is 9810209. The next prime is 9810221. The reversal of 9810220 is 220189.

It is a junction number, because it is equal to n+sod(n) for n = 9810191 and 9810200.

It is not an unprimeable number, because it can be changed into a prime (9810221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10617 + ... + 11503.

It is an arithmetic number, because the mean of its divisors is an integer number (497280).

Almost surely, 2^9810220 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 9810220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11934720).

9810220 is an abundant number, since it is smaller than the sum of its proper divisors (14059220).

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

9810220 is a wasteful number, since it uses less digits than its factorization.

9810220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982 (or 980 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 9810220 is about 3132.1270727734. The cubic root of 9810220 is about 214.0718598745.

The spelling of 9810220 in words is "nine million, eight hundred ten thousand, two hundred twenty".