581432 has 8 divisors (see below), whose sum is σ = 1090200. Its totient is φ = 290712.

The previous prime is 581429. The next prime is 581443. The reversal of 581432 is 234185.

It is a tau number, because it is divible by the number of its divisors (8).

It is an alternating number because its digits alternate between odd and even.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 581398 and 581407.

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 581432.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36332 + ... + 36347.

It is an arithmetic number, because the mean of its divisors is an integer number (136275).

2⁵⁸¹⁴³² is an apocalyptic number.

It is an amenable number.

581432 is a deficient number, since it is larger than the sum of its proper divisors (508768).

581432 is a wasteful number, since it uses less digits than its factorization.

581432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72685 (or 72681 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 581432 is about 762.5168850589. The cubic root of 581432 is about 83.4640862922.

The spelling of 581432 in words is "five hundred eighty-one thousand, four hundred thirty-two".