2003443040 has 24 divisors (see below), whose sum is σ = 4733134560. Its totient is φ = 801377152.

The previous prime is 2003443031. The next prime is 2003443067. The reversal of 2003443040 is 403443002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6260600 + ... + 6260919.

It is an arithmetic number, because the mean of its divisors is an integer number (197213940).

Almost surely, 2^2003443040 is an apocalyptic number.

2003443040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2003443040 is an abundant number, since it is smaller than the sum of its proper divisors (2729691520).

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

2003443040 is a wasteful number, since it uses less digits than its factorization.

2003443040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12521534 (or 12521526 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 2003443040 is about 44759.8373544856. The cubic root of 2003443040 is about 1260.6436285041.

Adding to 2003443040 its reverse (403443002), we get a palindrome (2406886042).

The spelling of 2003443040 in words is "two billion, three million, four hundred forty-three thousand, forty".