5440224 has 48 divisors (see below), whose sum is σ = 14530320. Its totient is φ = 1781760.

The previous prime is 5440223. The next prime is 5440229. The reversal of 5440224 is 4220445.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 5440224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5440223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5392 + ... + 6320.

It is an arithmetic number, because the mean of its divisors is an integer number (302715).

Almost surely, 2^5440224 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 5440224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7265160).

5440224 is an abundant number, since it is smaller than the sum of its proper divisors (9090096).

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

5440224 is a wasteful number, since it uses less digits than its factorization.

5440224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003 (or 995 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 5440224 is about 2332.4287770477. The cubic root of 5440224 is about 175.8756007989.

Adding to 5440224 its reverse (4220445), we get a palindrome (9660669).

The spelling of 5440224 in words is "five million, four hundred forty thousand, two hundred twenty-four".