9908442 has 12 divisors (see below), whose sum is σ = 21468330. Its totient is φ = 3302808.

The previous prime is 9908419. The next prime is 9908449. The reversal of 9908442 is 2448099.

It is a happy number.

9908442 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8946081 + 962361 = 2991^2 + 981^2 .

It is a junction number, because it is equal to n+sod(n) for n = 9908397 and 9908406.

It is not an unprimeable number, because it can be changed into a prime (9908449) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 275217 + ... + 275252.

Almost surely, 2^9908442 is an apocalyptic number.

9908442 is an abundant number, since it is smaller than the sum of its proper divisors (11559888).

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

9908442 is a wasteful number, since it uses less digits than its factorization.

9908442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550477 (or 550474 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 9908442 is about 3147.7677805073. The cubic root of 9908442 is about 214.7839329243.

The spelling of 9908442 in words is "nine million, nine hundred eight thousand, four hundred forty-two".