5443440 has 80 divisors (see below), whose sum is σ = 17359008. Its totient is φ = 1410048.

The previous prime is 5443439. The next prime is 5443441. The reversal of 5443440 is 443445.

It is an interprime number because it is at equal distance from previous prime (5443439) and next prime (5443441).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 5443440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5443441) 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 15 ways as a sum of consecutive naturals, for example, 8574 + ... + 9186.

Almost surely, 2^5443440 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 5443440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8679504).

5443440 is an abundant number, since it is smaller than the sum of its proper divisors (11915568).

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

5443440 is a wasteful number, since it uses less digits than its factorization.

5443440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666 (or 660 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 5443440 is about 2333.1180853099. The cubic root of 5443440 is about 175.9102503840.

Adding to 5443440 its reverse (443445), we get a palindrome (5886885).

The spelling of 5443440 in words is "five million, four hundred forty-three thousand, four hundred forty".