581244 has 12 divisors (see below), whose sum is σ = 1356264. Its totient is φ = 193744.

The previous prime is 581239. The next prime is 581261. The reversal of 581244 is 442185.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

581244 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24207 + ... + 24230.

It is an arithmetic number, because the mean of its divisors is an integer number (113022).

2⁵⁸¹²⁴⁴ is an apocalyptic number.

It is an amenable number.

581244 is an abundant number, since it is smaller than the sum of its proper divisors (775020).

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

581244 is a wasteful number, since it uses less digits than its factorization.

581244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48444 (or 48442 counting only the distinct ones).

The product of its digits is 1280, while the sum is 24.

The square root of 581244 is about 762.3935991337. The cubic root of 581244 is about 83.4550895739.

The spelling of 581244 in words is "five hundred eighty-one thousand, two hundred forty-four".