2003240556440 has 16 divisors (see below), whose sum is σ = 4507291252080. Its totient is φ = 801296222560.

The previous prime is 2003240556437. The next prime is 2003240556463. The reversal of 2003240556440 is 446550423002.

It is a self number, because there is not a number n which added to its sum of digits gives 2003240556440.

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, 25040506916 + ... + 25040506995.

It is an arithmetic number, because the mean of its divisors is an integer number (281705703255).

Almost surely, 2^{2003240556440} is an apocalyptic number.

2003240556440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2003240556440 is an abundant number, since it is smaller than the sum of its proper divisors (2504050695640).

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

2003240556440 is a wasteful number, since it uses less digits than its factorization.

2003240556440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50081013922 (or 50081013918 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 2003240556440 its reverse (446550423002), we get a palindrome (2449790979442).

The spelling of 2003240556440 in words is "two trillion, three billion, two hundred forty million, five hundred fifty-six thousand, four hundred forty".