2543000 has 32 divisors (see below), whose sum is σ = 5952960. Its totient is φ = 1016800.

The previous prime is 2542999. The next prime is 2543027. The reversal of 2543000 is 3452.

2543000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272 + ... + 2271.

It is an arithmetic number, because the mean of its divisors is an integer number (186030).

2^2543000 is an apocalyptic number.

2543000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2543000 is an abundant number, since it is smaller than the sum of its proper divisors (3409960).

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

2543000 is a wasteful number, since it uses less digits than its factorization.

2543000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2564 (or 2550 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 2543000 is about 1594.6786510141. The cubic root of 2543000 is about 136.4945947311.

Adding to 2543000 its reverse (3452), we get a palindrome (2546452).

The spelling of 2543000 in words is "two million, five hundred forty-three thousand".