5681440 has 24 divisors (see below), whose sum is σ = 13422780. Its totient is φ = 2272512.

The previous prime is 5681413. The next prime is 5681447. The reversal of 5681440 is 441865.

It can be written as a sum of positive squares in 2 ways, for example, as 5180176 + 501264 = 2276^2 + 708^2 .

It is a junction number, because it is equal to n+sod(n) for n = 5681399 and 5681408.

It is not an unprimeable number, because it can be changed into a prime (5681447) 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, 17595 + ... + 17914.

Almost surely, 2^5681440 is an apocalyptic number.

It is an amenable number.

5681440 is an abundant number, since it is smaller than the sum of its proper divisors (7741340).

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

5681440 is a wasteful number, since it uses less digits than its factorization.

5681440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35524 (or 35516 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 5681440 is about 2383.5771437065. The cubic root of 5681440 is about 178.4375047668.

The spelling of 5681440 in words is "five million, six hundred eighty-one thousand, four hundred forty".