9221740 has 48 divisors (see below), whose sum is σ = 21337344. Its totient is φ = 3320000.

The previous prime is 9221717. The next prime is 9221741. The reversal of 9221740 is 471229.

9221740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (9221741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36615 + ... + 36865.

It is an arithmetic number, because the mean of its divisors is an integer number (444528).

Almost surely, 2^9221740 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 9221740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10668672).

9221740 is an abundant number, since it is smaller than the sum of its proper divisors (12115604).

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

9221740 is a wasteful number, since it uses less digits than its factorization.

9221740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438 (or 436 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 9221740 is about 3036.7317958621. The cubic root of 9221740 is about 209.7028298631.

Adding to 9221740 its reverse (471229), we get a palindrome (9692969).

It can be divided in two parts, 922 and 1740, that added together give a palindrome (2662).

The spelling of 9221740 in words is "nine million, two hundred twenty-one thousand, seven hundred forty".