2543424538 has 8 divisors (see below), whose sum is σ = 3817281888. Its totient is φ = 1270997244.

The previous prime is 2543424523. The next prime is 2543424539. The reversal of 2543424538 is 8354243452.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2543424538.

It is not an unprimeable number, because it can be changed into a prime (2543424539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353056 + ... + 360187.

It is an arithmetic number, because the mean of its divisors is an integer number (477160236).

Almost surely, 2^2543424538 is an apocalyptic number.

2543424538 is a deficient number, since it is larger than the sum of its proper divisors (1273857350).

2543424538 is a wasteful number, since it uses less digits than its factorization.

2543424538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715028.

The product of its digits is 460800, while the sum is 40.

The square root of 2543424538 is about 50432.3758908898. The cubic root of 2543424538 is about 1365.0218994908.

The spelling of 2543424538 in words is "two billion, five hundred forty-three million, four hundred twenty-four thousand, five hundred thirty-eight".