5813640 has 128 divisors (see below), whose sum is σ = 22176000. Its totient is φ = 1327104.

The previous prime is 5813627. The next prime is 5813663. The reversal of 5813640 is 463185.

5813640 is a `hidden beast` number, since 5 + 8 + 13 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7176 + ... + 7944.

It is an arithmetic number, because the mean of its divisors is an integer number (173250).

Almost surely, 2^5813640 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 5813640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11088000).

5813640 is an abundant number, since it is smaller than the sum of its proper divisors (16362360).

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

5813640 is a wasteful number, since it uses less digits than its factorization.

5813640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796 (or 786 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 5813640 is about 2411.1491036433. The cubic root of 5813640 is about 179.8109125470.

The spelling of 5813640 in words is "five million, eight hundred thirteen thousand, six hundred forty".