9411920 has 70 divisors (see below), whose sum is σ = 25529802. Its totient is φ = 3226944.

The previous prime is 9411917. The next prime is 9411937. The reversal of 9411920 is 291149.

9411920 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 7529536 + 1882384 = 2744^2 + 1372^2 .

It is a tau number, because it is divible by the number of its divisors (70).

9411920 is strictly pandigital in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 9411920.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 1344557 + ... + 1344563.

Almost surely, 2^9411920 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 9411920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12764901).

9411920 is an abundant number, since it is smaller than the sum of its proper divisors (16117882).

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

9411920 is an frugal number, since it uses more digits than its factorization.

9411920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55 (or 14 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 9411920 is about 3067.8852651297. The cubic root of 9411920 is about 211.1345996231.

The spelling of 9411920 in words is "nine million, four hundred eleven thousand, nine hundred twenty".