2003242520 has 16 divisors (see below), whose sum is σ = 4507295760. Its totient is φ = 801296992.

The previous prime is 2003242519. The next prime is 2003242559. The reversal of 2003242520 is 252423002.

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

It is a junction number, because it is equal to n+sod(n) for n = 2003242492 and 2003242501.

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, 25040492 + ... + 25040571.

It is an arithmetic number, because the mean of its divisors is an integer number (281705985).

Almost surely, 2^2003242520 is an apocalyptic number.

2003242520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2003242520 is an abundant number, since it is smaller than the sum of its proper divisors (2504053240).

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

2003242520 is a wasteful number, since it uses less digits than its factorization.

2003242520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50081074 (or 50081070 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 2003242520 is about 44757.5973439147. The cubic root of 2003242520 is about 1260.6015687950.

Adding to 2003242520 its reverse (252423002), we get a palindrome (2255665522).

The spelling of 2003242520 in words is "two billion, three million, two hundred forty-two thousand, five hundred twenty".