2003989344 has 96 divisors (see below), whose sum is σ = 6026549760. Its totient is φ = 571180032.

The previous prime is 2003989331. The next prime is 2003989373. The reversal of 2003989344 is 4439893002.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 2003989296 and 2003989305.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 291612 + ... + 298404.

It is an arithmetic number, because the mean of its divisors is an integer number (62776560).

Almost surely, 2^2003989344 is an apocalyptic number.

2003989344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2003989344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3013274880).

2003989344 is an abundant number, since it is smaller than the sum of its proper divisors (4022560416).

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

2003989344 is a wasteful number, since it uses less digits than its factorization.

2003989344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7252 (or 7244 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 2003989344 is about 44765.9395522980. The cubic root of 2003989344 is about 1260.7582032727.

The spelling of 2003989344 in words is "two billion, three million, nine hundred eighty-nine thousand, three hundred forty-four".