2001303504 has 40 divisors (see below), whose sum is σ = 5744483520. Its totient is φ = 667101024.

The previous prime is 2001303449. The next prime is 2001303509. The reversal of 2001303504 is 4053031002.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001303509) 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, 2315892 + ... + 2316755.

It is an arithmetic number, because the mean of its divisors is an integer number (143612088).

Almost surely, 2^2001303504 is an apocalyptic number.

2001303504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2001303504 is an abundant number, since it is smaller than the sum of its proper divisors (3743180016).

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

2001303504 is a wasteful number, since it uses less digits than its factorization.

2001303504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4632664 (or 4632652 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 2001303504 is about 44735.9307939379. The cubic root of 2001303504 is about 1260.1947091389.

Adding to 2001303504 its reverse (4053031002), we get a palindrome (6054334506).

The spelling of 2001303504 in words is "two billion, one million, three hundred three thousand, five hundred four".