5881640 has 64 divisors (see below), whose sum is σ = 14256000. Its totient is φ = 2177280.

The previous prime is 5881639. The next prime is 5881649. The reversal of 5881640 is 461885.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 5881597 and 5881606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5881649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53906 + ... + 54014.

It is an arithmetic number, because the mean of its divisors is an integer number (222750).

Almost surely, 2^5881640 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 5881640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7128000).

5881640 is an abundant number, since it is smaller than the sum of its proper divisors (8374360).

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

5881640 is a wasteful number, since it uses less digits than its factorization.

5881640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210 (or 206 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 5881640 is about 2425.2092693209. The cubic root of 5881640 is about 180.5092574345.

The spelling of 5881640 in words is "five million, eight hundred eighty-one thousand, six hundred forty".