2003439 has 8 divisors (see below), whose sum is σ = 2743600. Its totient is φ = 1299456.

The previous prime is 2003411. The next prime is 2003447. The reversal of 2003439 is 9343002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2003439 - 2⁹ = 2002927 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8914 + ... + 9135.

It is an arithmetic number, because the mean of its divisors is an integer number (342950).

2^2003439 is an apocalyptic number.

2003439 is a deficient number, since it is larger than the sum of its proper divisors (740161).

2003439 is a wasteful number, since it uses less digits than its factorization.

2003439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18089.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 2003439 is about 1415.4289102601. The cubic root of 2003439 is about 126.0642781129.

It can be divided in two parts, 2003 and 439, that added together give a palindrome (2442).

The spelling of 2003439 in words is "two million, three thousand, four hundred thirty-nine".