2003403354240 has 256 divisors, whose sum is σ = 6540547305600. Its totient is φ = 521322332160.

The previous prime is 2003403354233. The next prime is 2003403354241. The reversal of 2003403354240 is 424533043002.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2003403354198 and 2003403354207.

It is not an unprimeable number, because it can be changed into a prime (2003403354241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91548100 + ... + 91569980.

Almost surely, 2^{2003403354240} is an apocalyptic number.

2003403354240 is a gapful number since it is divisible by the number (20) 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 2003403354240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3270273652800).

2003403354240 is an abundant number, since it is smaller than the sum of its proper divisors (4537143951360).

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

2003403354240 is a wasteful number, since it uses less digits than its factorization.

2003403354240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23055 (or 23043 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 30.

Adding to 2003403354240 its reverse (424533043002), we get a palindrome (2427936397242).

The spelling of 2003403354240 in words is "two trillion, three billion, four hundred three million, three hundred fifty-four thousand, two hundred forty".