2543400200 has 96 divisors (see below), whose sum is σ = 6495120000. Its totient is φ = 918547200.

The previous prime is 2543400193. The next prime is 2543400203. The reversal of 2543400200 is 20043452.

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

It is not an unprimeable number, because it can be changed into a prime (2543400203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 323921 + ... + 331679.

It is an arithmetic number, because the mean of its divisors is an integer number (67657500).

Almost surely, 2^2543400200 is an apocalyptic number.

2543400200 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 2543400200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3247560000).

2543400200 is an abundant number, since it is smaller than the sum of its proper divisors (3951719800).

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

2543400200 is a wasteful number, since it uses less digits than its factorization.

2543400200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7935 (or 7926 counting only the distinct ones).

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

The square root of 2543400200 is about 50432.1345969016. The cubic root of 2543400200 is about 1365.0175455173.

Adding to 2543400200 its reverse (20043452), we get a palindrome (2563443652).

The spelling of 2543400200 in words is "two billion, five hundred forty-three million, four hundred thousand, two hundred".