2543264 has 48 divisors (see below), whose sum is σ = 5443200. Its totient is φ = 1165824.

The previous prime is 2543257. The next prime is 2543279. The reversal of 2543264 is 4623452.

It is a d-powerful number, because it can be written as 2 + 5⁹ + 4³ + 3⁵ + 2¹⁹ + 6 + 4⁸ .

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, 28532 + ... + 28620.

It is an arithmetic number, because the mean of its divisors is an integer number (113400).

2^2543264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2543264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2721600).

2543264 is an abundant number, since it is smaller than the sum of its proper divisors (2899936).

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

2543264 is a wasteful number, since it uses less digits than its factorization.

2543264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165 (or 157 counting only the distinct ones).

The product of its digits is 5760, while the sum is 26.

The square root of 2543264 is about 1594.7614241635. The cubic root of 2543264 is about 136.4993179355.

It can be divided in two parts, 25 and 43264, that multiplied together give a square (1081600 = 1040²).

The spelling of 2543264 in words is "two million, five hundred forty-three thousand, two hundred sixty-four".