9919044 has 48 divisors (see below), whose sum is σ = 26611200. Its totient is φ = 3191328.

The previous prime is 9919037. The next prime is 9919057. The reversal of 9919044 is 4409199.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 15 ways as a sum of consecutive naturals, for example, 1549 + ... + 4715.

It is an arithmetic number, because the mean of its divisors is an integer number (554400).

Almost surely, 2^9919044 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 9919044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13305600).

9919044 is an abundant number, since it is smaller than the sum of its proper divisors (16692156).

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

9919044 is a wasteful number, since it uses less digits than its factorization.

9919044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3209 (or 3201 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 9919044 is about 3149.4513807963. The cubic root of 9919044 is about 214.8605116492.

The spelling of 9919044 in words is "nine million, nine hundred nineteen thousand, forty-four".