581028 has 24 divisors (see below), whose sum is σ = 1549632. Its totient is φ = 165984.

The previous prime is 580997. The next prime is 581029. The reversal of 581028 is 820185.

581028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 580989 and 581007.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 581028.

It is not an unprimeable number, because it can be changed into a prime (581029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3375 + ... + 3542.

It is an arithmetic number, because the mean of its divisors is an integer number (64568).

2⁵⁸¹⁰²⁸ is an apocalyptic number.

It is an amenable number.

581028 is an abundant number, since it is smaller than the sum of its proper divisors (968604).

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

581028 is a wasteful number, since it uses less digits than its factorization.

581028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6931 (or 6929 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 581028 is about 762.2519268588. The cubic root of 581028 is about 83.4447505237. Note that the first 3 decimals are identical.

The spelling of 581028 in words is "five hundred eighty-one thousand, twenty-eight".