2003344 has 40 divisors (see below), whose sum is σ = 4587008. Its totient is φ = 829440.

The previous prime is 2003329. The next prime is 2003359. The reversal of 2003344 is 4433002.

It is an interprime number because it is at equal distance from previous prime (2003329) and next prime (2003359).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3184 + ... + 3760.

2^2003344 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 2003344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2293504).

2003344 is an abundant number, since it is smaller than the sum of its proper divisors (2583664).

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

2003344 is a wasteful number, since it uses less digits than its factorization.

2003344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623 (or 617 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 2003344 is about 1415.3953511299. The cubic root of 2003344 is about 126.0622854899.

Adding to 2003344 its reverse (4433002), we get a palindrome (6436346).

The spelling of 2003344 in words is "two million, three thousand, three hundred forty-four".