9944400 has 60 divisors (see below), whose sum is σ = 31859072. Its totient is φ = 2651520.

The previous prime is 9944393. The next prime is 9944423. The reversal of 9944400 is 44499.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 2944 + ... + 5343.

Almost surely, 2^9944400 is an apocalyptic number.

It is an amenable number.

9944400 is an abundant number, since it is smaller than the sum of its proper divisors (21914672).

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

9944400 is a wasteful number, since it uses less digits than its factorization.

9944400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8308 (or 8297 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 9944400 is about 3153.4742745106. The cubic root of 9944400 is about 215.0434381315.

Adding to 9944400 its reverse (44499), we get a palindrome (9988899).

The spelling of 9944400 in words is "nine million, nine hundred forty-four thousand, four hundred".