5816538 has 96 divisors (see below), whose sum is σ = 16039296. Its totient is φ = 1482624.

The previous prime is 5816521. The next prime is 5816549. The reversal of 5816538 is 8356185.

It is a super-2 number, since 2×5816538² = 67664228610888, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 86781 + ... + 86847.

It is an arithmetic number, because the mean of its divisors is an integer number (167076).

Almost surely, 2^5816538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5816538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8019648).

5816538 is an abundant number, since it is smaller than the sum of its proper divisors (10222758).

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

5816538 is a wasteful number, since it uses less digits than its factorization.

5816538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 145 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 5816538 is about 2411.7499870426. The cubic root of 5816538 is about 179.8407851376.

The spelling of 5816538 in words is "five million, eight hundred sixteen thousand, five hundred thirty-eight".