581442 has 8 divisors (see below), whose sum is σ = 1162896. Its totient is φ = 193812.

The previous prime is 581429. The next prime is 581443. The reversal of 581442 is 244185.

581442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

581442 is an admirable number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 581442.

It is not an unprimeable number, because it can be changed into a prime (581443) 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, 48448 + ... + 48459.

It is an arithmetic number, because the mean of its divisors is an integer number (145362).

2⁵⁸¹⁴⁴² is an apocalyptic number.

581442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

581442 is a wasteful number, since it uses less digits than its factorization.

581442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96912.

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

The square root of 581442 is about 762.5234422626. The cubic root of 581442 is about 83.4645647867.

The spelling of 581442 in words is "five hundred eighty-one thousand, four hundred forty-two".