9428224 has 36 divisors (see below), whose sum is σ = 20274436. Its totient is φ = 4349952.

The previous prime is 9428213. The next prime is 9428227. The reversal of 9428224 is 4228249.

It can be written as a sum of positive squares in 2 ways, for example, as 2458624 + 6969600 = 1568^2 + 2640^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9428227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1912 + ... + 4744.

Almost surely, 2^9428224 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 9428224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10137218).

9428224 is an abundant number, since it is smaller than the sum of its proper divisors (10846212).

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

9428224 is a wasteful number, since it uses less digits than its factorization.

9428224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2862 (or 2848 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 9428224 is about 3070.5413203538. The cubic root of 9428224 is about 211.2564434387.

It can be divided in two parts, 94 and 28224, that multiplied together give a triangular number (2653056 = T₂₃₀₃).

The spelling of 9428224 in words is "nine million, four hundred twenty-eight thousand, two hundred twenty-four".