9841920 has 144 divisors (see below), whose sum is σ = 34437312. Its totient is φ = 2375680.

The previous prime is 9841877. The next prime is 9841921. The reversal of 9841920 is 291489.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9841921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42124 + ... + 42356.

It is an arithmetic number, because the mean of its divisors is an integer number (239148).

Almost surely, 2^9841920 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 9841920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17218656).

9841920 is an abundant number, since it is smaller than the sum of its proper divisors (24595392).

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

9841920 is a wasteful number, since it uses less digits than its factorization.

9841920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 9841920 is about 3137.1834501667. The cubic root of 9841920 is about 214.3021904792.

The spelling of 9841920 in words is "nine million, eight hundred forty-one thousand, nine hundred twenty".