2543430342 has 16 divisors (see below), whose sum is σ = 5100287040. Its totient is φ = 845572392.

The previous prime is 2543430313. The next prime is 2543430347. The reversal of 2543430342 is 2430343452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2543430347) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 556968 + ... + 561515.

It is an arithmetic number, because the mean of its divisors is an integer number (318767940).

Almost surely, 2^2543430342 is an apocalyptic number.

2543430342 is an abundant number, since it is smaller than the sum of its proper divisors (2556856698).

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

2543430342 is a wasteful number, since it uses less digits than its factorization.

2543430342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118867.

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

The square root of 2543430342 is about 50432.4334332580. The cubic root of 2543430342 is about 1365.0229377997.

Adding to 2543430342 its reverse (2430343452), we get a palindrome (4973773794).

The spelling of 2543430342 in words is "two billion, five hundred forty-three million, four hundred thirty thousand, three hundred forty-two".