581132232 has 60 divisors (see below), whose sum is σ = 1629428955. Its totient is φ = 193506192.

The previous prime is 581132213. The next prime is 581132239. The reversal of 581132232 is 232231185.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

581132232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 290566116 + 290566116 = 17046^2 + 17046^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=17046.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 581132196 and 581132205.

It is not an unprimeable number, because it can be changed into a prime (581132239) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 613183 + ... + 614129.

Almost surely, 2^581132232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 581132232

581132232 is an abundant number, since it is smaller than the sum of its proper divisors (1048296723).

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

581132232 is an frugal number, since it uses more digits than its factorization.

581132232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1912 (or 952 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 581132232 is about 24106.6843842118. The cubic root of 581132232 is about 834.4974000967.

The spelling of 581132232 in words is "five hundred eighty-one million, one hundred thirty-two thousand, two hundred thirty-two".