9919338 has 48 divisors (see below), whose sum is σ = 23505888. Its totient is φ = 2772000.

The previous prime is 9919309. The next prime is 9919361. The reversal of 9919338 is 8339199.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 9919338.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8913 + ... + 9963.

It is an arithmetic number, because the mean of its divisors is an integer number (489706).

Almost surely, 2^9919338 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9919338, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11752944).

9919338 is an abundant number, since it is smaller than the sum of its proper divisors (13586550).

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

9919338 is a wasteful number, since it uses less digits than its factorization.

9919338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091 (or 1080 counting only the distinct ones).

The product of its digits is 52488, while the sum is 42.

The square root of 9919338 is about 3149.4980552463. The cubic root of 9919338 is about 214.8626344467.

The spelling of 9919338 in words is "nine million, nine hundred nineteen thousand, three hundred thirty-eight".