5518440 has 48 divisors (see below), whose sum is σ = 17936100. Its totient is φ = 1471488.

The previous prime is 5518433. The next prime is 5518453. The reversal of 5518440 is 448155.

It can be written as a sum of positive squares in 2 ways, for example, as 5008644 + 509796 = 2238^2 + 714^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7305 + ... + 8024.

Almost surely, 2^5518440 is an apocalyptic number.

It is an amenable number.

5518440 is an abundant number, since it is smaller than the sum of its proper divisors (12417660).

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

5518440 is a wasteful number, since it uses less digits than its factorization.

5518440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15346 (or 15339 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 5518440 is about 2349.1360113880. The cubic root of 5518440 is about 176.7144682959.

The spelling of 5518440 in words is "five million, five hundred eighteen thousand, four hundred forty".