581480 has 16 divisors (see below), whose sum is σ = 1308420. Its totient is φ = 232576.

The previous prime is 581473. The next prime is 581491. The reversal of 581480 is 84185.

It can be written as a sum of positive squares in 2 ways, for example, as 556516 + 24964 = 746^2 + 158^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 581480.

It is an unprimeable number.

581480 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 in 3 ways as a sum of consecutive naturals, for example, 7229 + ... + 7308.

2⁵⁸¹⁴⁸⁰ is an apocalyptic number.

It is an amenable number.

581480 is an abundant number, since it is smaller than the sum of its proper divisors (726940).

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

581480 is a wasteful number, since it uses less digits than its factorization.

581480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14548 (or 14544 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 581480 is about 762.5483591222. The cubic root of 581480 is about 83.4663830159.

The spelling of 581480 in words is "five hundred eighty-one thousand, four hundred eighty".