581004 has 18 divisors (see below), whose sum is σ = 1468740. Its totient is φ = 193656.

The previous prime is 580997. The next prime is 581029. The reversal of 581004 is 400185.

581004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 581004.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8034 + ... + 8105.

2⁵⁸¹⁰⁰⁴ is an apocalyptic number.

It is an amenable number.

581004 is an abundant number, since it is smaller than the sum of its proper divisors (887736).

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

581004 is a wasteful number, since it uses less digits than its factorization.

581004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16149 (or 16144 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 581004 is about 762.2361838695. The cubic root of 581004 is about 83.4436015822.

Adding to 581004 its reverse (400185), we get a palindrome (981189).

The spelling of 581004 in words is "five hundred eighty-one thousand, four".