9942424 has 8 divisors (see below), whose sum is σ = 18642060. Its totient is φ = 4971208.

The previous prime is 9942421. The next prime is 9942437. The reversal of 9942424 is 4242499.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 9942424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9942421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621394 + ... + 621409.

Almost surely, 2^9942424 is an apocalyptic number.

It is an amenable number.

9942424 is a deficient number, since it is larger than the sum of its proper divisors (8699636).

9942424 is a wasteful number, since it uses less digits than its factorization.

9942424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242809 (or 1242805 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 9942424 is about 3153.1609537098. The cubic root of 9942424 is about 215.0291938003.

The spelling of 9942424 in words is "nine million, nine hundred forty-two thousand, four hundred twenty-four".