5440243 has 4 divisors (see below), whose sum is σ = 5448808. Its totient is φ = 5431680.

The previous prime is 5440241. The next prime is 5440247. The reversal of 5440243 is 3420445.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5440243 - 2¹ = 5440241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5440241) 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, 3246 + ... + 4627.

It is an arithmetic number, because the mean of its divisors is an integer number (1362202).

Almost surely, 2^5440243 is an apocalyptic number.

5440243 is a deficient number, since it is larger than the sum of its proper divisors (8565).

5440243 is an equidigital number, since it uses as much as digits as its factorization.

5440243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8564.

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

The square root of 5440243 is about 2332.4328500516. The cubic root of 5440243 is about 175.8758055474.

Adding to 5440243 its reverse (3420445), we get a palindrome (8860688).

It can be divided in two parts, 54402 and 43, that added together give a palindrome (54445).

The spelling of 5440243 in words is "five million, four hundred forty thousand, two hundred forty-three".