2001304400 has 30 divisors (see below), whose sum is σ = 4808134782. Its totient is φ = 800521600.

The previous prime is 2001304399. The next prime is 2001304411. The reversal of 2001304400 is 44031002.

It can be written as a sum of positive squares in 3 ways, for example, as 126067984 + 1875236416 = 11228^2 + 43304^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2501231 + ... + 2502030.

Almost surely, 2^2001304400 is an apocalyptic number.

2001304400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001304400 is an abundant number, since it is smaller than the sum of its proper divisors (2806830382).

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

2001304400 is a wasteful number, since it uses less digits than its factorization.

2001304400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5003279 (or 5003268 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2001304400 is about 44735.9408082584. The cubic root of 2001304400 is about 1260.1948972053.

Adding to 2001304400 its reverse (44031002), we get a palindrome (2045335402).

The spelling of 2001304400 in words is "two billion, one million, three hundred four thousand, four hundred".