2543224 has 8 divisors (see below), whose sum is σ = 4768560. Its totient is φ = 1271608.

The previous prime is 2543221. The next prime is 2543237. The reversal of 2543224 is 4223452.

It is a tau number, because it is divible by the number of its divisors (8).

It is a d-powerful number, because it can be written as 2⁹ + 5³ + 4⁶ + 3¹¹ + 2¹¹ + 2²¹ + 4⁹ .

It is a junction number, because it is equal to n+sod(n) for n = 2543195 and 2543204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2543221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158944 + ... + 158959.

It is an arithmetic number, because the mean of its divisors is an integer number (596070).

2^2543224 is an apocalyptic number.

It is an amenable number.

2543224 is a deficient number, since it is larger than the sum of its proper divisors (2225336).

2543224 is a wasteful number, since it uses less digits than its factorization.

2543224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317909 (or 317905 counting only the distinct ones).

The product of its digits is 1920, while the sum is 22.

The square root of 2543224 is about 1594.7488830534. The cubic root of 2543224 is about 136.4986023195.

Adding to 2543224 its reverse (4223452), we get a palindrome (6766676).

The spelling of 2543224 in words is "two million, five hundred forty-three thousand, two hundred twenty-four".