9822240 has 144 divisors (see below), whose sum is σ = 35380800. Its totient is φ = 2474496.

The previous prime is 9822233. The next prime is 9822251. The reversal of 9822240 is 422289.

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27181 + ... + 27539.

It is an arithmetic number, because the mean of its divisors is an integer number (245700).

Almost surely, 2^9822240 is an apocalyptic number.

9822240 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9822240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17690400).

9822240 is an abundant number, since it is smaller than the sum of its proper divisors (25558560).

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

9822240 is a wasteful number, since it uses less digits than its factorization.

9822240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399 (or 388 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 9822240 is about 3134.0453091811. The cubic root of 9822240 is about 214.1592549093.

The spelling of 9822240 in words is "nine million, eight hundred twenty-two thousand, two hundred forty".