9816242 has 16 divisors (see below), whose sum is σ = 15849432. Its totient is φ = 4542720.

The previous prime is 9816229. The next prime is 9816253. The reversal of 9816242 is 2426189.

It can be written as a sum of positive squares in 4 ways, for example, as 5527201 + 4289041 = 2351^2 + 2071^2 .

It is a junction number, because it is equal to n+sod(n) for n = 9816199 and 9816208.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 293 + ... + 4440.

Almost surely, 2^9816242 is an apocalyptic number.

9816242 is a deficient number, since it is larger than the sum of its proper divisors (6033190).

9816242 is a wasteful number, since it uses less digits than its factorization.

9816242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4813.

The product of its digits is 6912, while the sum is 32.

The square root of 9816242 is about 3133.0882528266. The cubic root of 9816242 is about 214.1156535594.

The spelling of 9816242 in words is "nine million, eight hundred sixteen thousand, two hundred forty-two".