9845220 has 96 divisors (see below), whose sum is σ = 34384896. Its totient is φ = 2044800.

The previous prime is 9845161. The next prime is 9845233. The reversal of 9845220 is 225489.

9845220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a d-powerful number, because it can be written as 9⁵ + 8² + 4⁶ + 5¹⁰ + 2 + 2¹⁴ + 0 .

It is a congruent number.

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, 3555 + ... + 5685.

It is an arithmetic number, because the mean of its divisors is an integer number (358176).

Almost surely, 2^9845220 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 9845220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17192448).

9845220 is an abundant number, since it is smaller than the sum of its proper divisors (24539676).

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

9845220 is a wasteful number, since it uses less digits than its factorization.

9845220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2161 (or 2159 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 9845220 is about 3137.7093555650. The cubic root of 9845220 is about 214.3261396748.

The spelling of 9845220 in words is "nine million, eight hundred forty-five thousand, two hundred twenty".