2543964 has 12 divisors (see below), whose sum is σ = 5935944. Its totient is φ = 847984.

The previous prime is 2543963. The next prime is 2543971. The reversal of 2543964 is 4693452.

2543964 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2543963) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 105987 + ... + 106010.

It is an arithmetic number, because the mean of its divisors is an integer number (494662).

2^2543964 is an apocalyptic number.

It is an amenable number.

2543964 is an abundant number, since it is smaller than the sum of its proper divisors (3391980).

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

2543964 is a wasteful number, since it uses less digits than its factorization.

2543964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212004 (or 212002 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 2543964 is about 1594.9808776283. The cubic root of 2543964 is about 136.5118400013.

The spelling of 2543964 in words is "two million, five hundred forty-three thousand, nine hundred sixty-four".