9421644 has 72 divisors (see below), whose sum is σ = 24467520. Its totient is φ = 2812320.

The previous prime is 9421637. The next prime is 9421661. The reversal of 9421644 is 4461249.

9421644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 219087 + ... + 219129.

Almost surely, 2^9421644 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 9421644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12233760).

9421644 is an abundant number, since it is smaller than the sum of its proper divisors (15045876).

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

9421644 is a wasteful number, since it uses less digits than its factorization.

9421644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 98 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 9421644 is about 3069.4696610327. The cubic root of 9421644 is about 211.2072863935.

The spelling of 9421644 in words is "nine million, four hundred twenty-one thousand, six hundred forty-four".