5851818 has 64 divisors (see below), whose sum is σ = 15102720. Its totient is φ = 1645056.

The previous prime is 5851801. The next prime is 5851831. The reversal of 5851818 is 8181585.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42646 + ... + 42782.

It is an arithmetic number, because the mean of its divisors is an integer number (235980).

Almost surely, 2^5851818 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5851818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7551360).

5851818 is an abundant number, since it is smaller than the sum of its proper divisors (9250902).

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

5851818 is a wasteful number, since it uses less digits than its factorization.

5851818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268 (or 262 counting only the distinct ones).

The product of its digits is 12800, while the sum is 36.

The square root of 5851818 is about 2419.0531205412. The cubic root of 5851818 is about 180.2036583757.

The spelling of 5851818 in words is "five million, eight hundred fifty-one thousand, eight hundred eighteen".