9224640 has 84 divisors (see below), whose sum is σ = 31738824. Its totient is φ = 2459136.

The previous prime is 9224629. The next prime is 9224647. The reversal of 9224640 is 464229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9224647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1279 + ... + 4481.

Almost surely, 2^9224640 is an apocalyptic number.

9224640 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9224640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15869412).

9224640 is an abundant number, since it is smaller than the sum of its proper divisors (22514184).

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

9224640 is a wasteful number, since it uses less digits than its factorization.

9224640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3226 (or 3213 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 9224640 is about 3037.2092453435. The cubic root of 9224640 is about 209.7248096077.

Adding to 9224640 its reverse (464229), we get a palindrome (9688869).

The spelling of 9224640 in words is "nine million, two hundred twenty-four thousand, six hundred forty".