5811630 has 48 divisors (see below), whose sum is σ = 15340752. Its totient is φ = 1408000.

The previous prime is 5811607. The next prime is 5811643. The reversal of 5811630 is 361185.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 5811630.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2830 + ... + 4430.

It is an arithmetic number, because the mean of its divisors is an integer number (319599).

Almost surely, 2^5811630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5811630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7670376).

5811630 is an abundant number, since it is smaller than the sum of its proper divisors (9529122).

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

5811630 is a wasteful number, since it uses less digits than its factorization.

5811630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1633 (or 1622 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 5811630 is about 2410.7322539013. The cubic root of 5811630 is about 179.7901876314.

It can be divided in two parts, 5811 and 630, that added together give a triangular number (6441 = T₁₁₃).

The spelling of 5811630 in words is "five million, eight hundred eleven thousand, six hundred thirty".