2543266 has 8 divisors (see below), whose sum is σ = 4161744. Its totient is φ = 1156020.

The previous prime is 2543257. The next prime is 2543279. The reversal of 2543266 is 6623452.

It is a happy number.

2543266 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a d-powerful number, because it can be written as 2⁵ + 5⁹ + 4⁸ + 3⁵ + 2¹⁹ + 6 + 6² .

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 3 ways as a sum of consecutive naturals, for example, 57780 + ... + 57823.

It is an arithmetic number, because the mean of its divisors is an integer number (520218).

2^2543266 is an apocalyptic number.

2543266 is a deficient number, since it is larger than the sum of its proper divisors (1618478).

2543266 is a wasteful number, since it uses less digits than its factorization.

2543266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115616.

The product of its digits is 8640, while the sum is 28.

The square root of 2543266 is about 1594.7620512164. The cubic root of 2543266 is about 136.4993537161.

Subtracting from 2543266 its product of digits (8640), we obtain a triangular number (2534626 = T₂₂₅₁).

It can be divided in two parts, 2543 and 266, that added together give a square (2809 = 53²).

The spelling of 2543266 in words is "two million, five hundred forty-three thousand, two hundred sixty-six".