5404240 has 40 divisors (see below), whose sum is σ = 12865248. Its totient is φ = 2110080.

The previous prime is 5404229. The next prime is 5404253. The reversal of 5404240 is 424045.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2655 + ... + 4225.

Almost surely, 2^5404240 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 5404240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6432624).

5404240 is an abundant number, since it is smaller than the sum of its proper divisors (7461008).

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

5404240 is a wasteful number, since it uses less digits than its factorization.

5404240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627 (or 1621 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 5404240 is about 2324.7021314568. The cubic root of 5404240 is about 175.4869701882.

Adding to 5404240 its reverse (424045), we get a palindrome (5828285).

The spelling of 5404240 in words is "five million, four hundred four thousand, two hundred forty".