2543994352 has 20 divisors (see below), whose sum is σ = 4930380616. Its totient is φ = 1271638080.

The previous prime is 2543994319. The next prime is 2543994353. The reversal of 2543994352 is 2534993452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2543994353) 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, 41527 + ... + 82537.

Almost surely, 2^2543994352 is an apocalyptic number.

It is an amenable number.

2543994352 is a deficient number, since it is larger than the sum of its proper divisors (2386386264).

2543994352 is a wasteful number, since it uses less digits than its factorization.

2543994352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44896 (or 44890 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 46.

The square root of 2543994352 is about 50438.0248622009. The cubic root of 2543994352 is about 1365.1238290611.

The spelling of 2543994352 in words is "two billion, five hundred forty-three million, nine hundred ninety-four thousand, three hundred fifty-two".