581204 has 12 divisors (see below), whose sum is σ = 1095444. Its totient is φ = 268224.

The previous prime is 581201. The next prime is 581227. The reversal of 581204 is 402185.

581204 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 300304 + 280900 = 548^2 + 530^2 .

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 581204.

It is not an unprimeable number, because it can be changed into a prime (581201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5537 + ... + 5640.

It is an arithmetic number, because the mean of its divisors is an integer number (91287).

2⁵⁸¹²⁰⁴ is an apocalyptic number.

It is an amenable number.

581204 is a deficient number, since it is larger than the sum of its proper divisors (514240).

581204 is a wasteful number, since it uses less digits than its factorization.

581204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11194 (or 11192 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 581204 is about 762.3673655135. The cubic root of 581204 is about 83.4531751283.

Adding to 581204 its reverse (402185), we get a palindrome (983389).

The spelling of 581204 in words is "five hundred eighty-one thousand, two hundred four".