5813840 has 20 divisors (see below), whose sum is σ = 13517364. Its totient is φ = 2325504.

The previous prime is 5813827. The next prime is 5813861. The reversal of 5813840 is 483185.

It can be written as a sum of positive squares in 2 ways, for example, as 2383936 + 3429904 = 1544^2 + 1852^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36257 + ... + 36416.

Almost surely, 2^5813840 is an apocalyptic number.

It is an amenable number.

5813840 is an abundant number, since it is smaller than the sum of its proper divisors (7703524).

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

5813840 is a wasteful number, since it uses less digits than its factorization.

5813840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72686 (or 72680 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 5813840 is about 2411.1905772875. The cubic root of 5813840 is about 179.8129744663.

The spelling of 5813840 in words is "five million, eight hundred thirteen thousand, eight hundred forty".