5618240 has 56 divisors (see below), whose sum is σ = 13591032. Its totient is φ = 2211840.

The previous prime is 5618219. The next prime is 5618269. The reversal of 5618240 is 428165.

It can be written as a sum of positive squares in 4 ways, for example, as 10816 + 5607424 = 104^2 + 2368^2 .

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, 30950 + ... + 31130.

It is an arithmetic number, because the mean of its divisors is an integer number (242697).

Almost surely, 2^5618240 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 5618240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6795516).

5618240 is an abundant number, since it is smaller than the sum of its proper divisors (7972792).

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

5618240 is a wasteful number, since it uses less digits than its factorization.

5618240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295 (or 285 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 5618240 is about 2370.2826835633. The cubic root of 5618240 is about 177.7733934104.

The spelling of 5618240 in words is "five million, six hundred eighteen thousand, two hundred forty".