9393920 has 72 divisors (see below), whose sum is σ = 23178960. Its totient is φ = 3645440.

The previous prime is 9393871. The next prime is 9393929. The reversal of 9393920 is 293939.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9393929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52391 + ... + 52569.

It is an arithmetic number, because the mean of its divisors is an integer number (321930).

Almost surely, 2^9393920 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 9393920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11589480).

9393920 is an abundant number, since it is smaller than the sum of its proper divisors (13785040).

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

9393920 is a wasteful number, since it uses less digits than its factorization.

9393920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 35.

The square root of 9393920 is about 3064.9502442944. The cubic root of 9393920 is about 210.9999176418. Note that the first 4 decimals are identical.

The spelling of 9393920 in words is "nine million, three hundred ninety-three thousand, nine hundred twenty".