581130732 has 192 divisors, whose sum is σ = 1806586880. Its totient is φ = 141087744.

The previous prime is 581130677. The next prime is 581130757. The reversal of 581130732 is 237031185.

581130732 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 581130732.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 767298 + ... + 768054.

Almost surely, 2^581130732 is an apocalyptic number.

581130732 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 581130732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (903293440).

581130732 is an abundant number, since it is smaller than the sum of its proper divisors (1225456148).

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

581130732 is a wasteful number, since it uses less digits than its factorization.

581130732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840 (or 838 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 581130732 is about 24106.6532724889. The cubic root of 581130732 is about 834.4966821034.

The spelling of 581130732 in words is "five hundred eighty-one million, one hundred thirty thousand, seven hundred thirty-two".