9119920 has 40 divisors (see below), whose sum is σ = 21940560. Its totient is φ = 3521280.

The previous prime is 9119909. The next prime is 9119933. The reversal of 9119920 is 299119.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 355 + ... + 4285.

It is an arithmetic number, because the mean of its divisors is an integer number (548514).

Almost surely, 2^9119920 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 9119920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10970280).

9119920 is an abundant number, since it is smaller than the sum of its proper divisors (12820640).

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

9119920 is a wasteful number, since it uses less digits than its factorization.

9119920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3973 (or 3967 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 31.

The square root of 9119920 is about 3019.9205287557. The cubic root of 9119920 is about 208.9281744598.

It can be divided in two parts, 91199 and 20, that added together give a palindrome (91219).

The spelling of 9119920 in words is "nine million, one hundred nineteen thousand, nine hundred twenty".