5531440 has 20 divisors (see below), whose sum is σ = 12860784. Its totient is φ = 2212544.

The previous prime is 5531437. The next prime is 5531441. The reversal of 5531440 is 441355.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (5531441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34492 + ... + 34651.

Almost surely, 2^5531440 is an apocalyptic number.

It is an amenable number.

5531440 is an abundant number, since it is smaller than the sum of its proper divisors (7329344).

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

5531440 is a wasteful number, since it uses less digits than its factorization.

5531440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69156 (or 69150 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 5531440 is about 2351.9013584757. The cubic root of 5531440 is about 176.8531238162.

Adding to 5531440 its reverse (441355), we get a palindrome (5972795).

The spelling of 5531440 in words is "five million, five hundred thirty-one thousand, four hundred forty".