2000543240 has 16 divisors (see below), whose sum is σ = 4501222380. Its totient is φ = 800217280.

The previous prime is 2000543239. The next prime is 2000543263. The reversal of 2000543240 is 423450002.

It can be written as a sum of positive squares in 2 ways, for example, as 2000415076 + 128164 = 44726^2 + 358^2 .

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

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, 25006751 + ... + 25006830.

Almost surely, 2^2000543240 is an apocalyptic number.

2000543240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2000543240 is an abundant number, since it is smaller than the sum of its proper divisors (2500679140).

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

2000543240 is a wasteful number, since it uses less digits than its factorization.

2000543240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50013592 (or 50013588 counting only the distinct ones).

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

The square root of 2000543240 is about 44727.4327454639. The cubic root of 2000543240 is about 1260.0351128201.

Adding to 2000543240 its reverse (423450002), we get a palindrome (2423993242).

The spelling of 2000543240 in words is "two billion, five hundred forty-three thousand, two hundred forty".