2543403432 has 96 divisors (see below), whose sum is σ = 6695297280. Its totient is φ = 804311040.

The previous prime is 2543403419. The next prime is 2543403437. The reversal of 2543403432 is 2343043452.

It is a self number, because there is not a number n which added to its sum of digits gives 2543403432.

It is not an unprimeable number, because it can be changed into a prime (2543403437) 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, 2089288 + ... + 2090504.

It is an arithmetic number, because the mean of its divisors is an integer number (69742680).

Almost surely, 2^2543403432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2543403432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3347648640).

2543403432 is an abundant number, since it is smaller than the sum of its proper divisors (4151893848).

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

2543403432 is a wasteful number, since it uses less digits than its factorization.

2543403432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363 (or 1306 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 30.

The square root of 2543403432 is about 50432.1666399531. The cubic root of 2543403432 is about 1365.0181237111.

Adding to 2543403432 its reverse (2343043452), we get a palindrome (4886446884).

The spelling of 2543403432 in words is "two billion, five hundred forty-three million, four hundred three thousand, four hundred thirty-two".