9924390 has 128 divisors (see below), whose sum is σ = 31104000. Its totient is φ = 2204928.

The previous prime is 9924367. The next prime is 9924391. The reversal of 9924390 is 934299.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9924391) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 111466 + ... + 111554.

It is an arithmetic number, because the mean of its divisors is an integer number (243000).

Almost surely, 2^9924390 is an apocalyptic number.

9924390 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 9924390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15552000).

9924390 is an abundant number, since it is smaller than the sum of its proper divisors (21179610).

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

9924390 is a wasteful number, since it uses less digits than its factorization.

9924390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 9924390 is about 3150.2999857156. The cubic root of 9924390 is about 214.8991053550.

The spelling of 9924390 in words is "nine million, nine hundred twenty-four thousand, three hundred ninety".