2543684 has 24 divisors (see below), whose sum is σ = 5230848. Its totient is φ = 1067040.

The previous prime is 2543657. The next prime is 2543699. The reversal of 2543684 is 4863452.

It is a d-powerful number, because it can be written as 2¹⁹ + 5⁹ + 4 + 3 + 6³ + 8³ + 4⁸ .

It is a self number, because there is not a number n which added to its sum of digits gives 2543684.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1652 + ... + 2795.

It is an arithmetic number, because the mean of its divisors is an integer number (217952).

2^2543684 is an apocalyptic number.

It is an amenable number.

2543684 is an abundant number, since it is smaller than the sum of its proper divisors (2687164).

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

2543684 is a wasteful number, since it uses less digits than its factorization.

2543684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4475 (or 4473 counting only the distinct ones).

The product of its digits is 23040, while the sum is 32.

The square root of 2543684 is about 1594.8930998659. The cubic root of 2543684 is about 136.5068314506.

The spelling of 2543684 in words is "two million, five hundred forty-three thousand, six hundred eighty-four".