5523440 has 80 divisors (see below), whose sum is σ = 14249088. Its totient is φ = 1978368.

The previous prime is 5523437. The next prime is 5523457. The reversal of 5523440 is 443255.

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

It is a congruent number.

It is an unprimeable number.

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, 48824 + ... + 48936.

Almost surely, 2^5523440 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 5523440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7124544).

5523440 is an abundant number, since it is smaller than the sum of its proper divisors (8725648).

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

5523440 is a wasteful number, since it uses less digits than its factorization.

5523440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 5523440 is about 2350.1999914901. The cubic root of 5523440 is about 176.7678230858.

Adding to 5523440 its reverse (443255), we get a palindrome (5966695).

The spelling of 5523440 in words is "five million, five hundred twenty-three thousand, four hundred forty".