581128468 has 24 divisors (see below), whose sum is σ = 1034026560. Its totient is φ = 285714240.

The previous prime is 581128463. The next prime is 581128469. The reversal of 581128468 is 864821185.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (581128463) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 113655 + ... + 118657.

It is an arithmetic number, because the mean of its divisors is an integer number (43084440).

Almost surely, 2^581128468 is an apocalyptic number.

It is an amenable number.

581128468 is a deficient number, since it is larger than the sum of its proper divisors (452898092).

581128468 is a wasteful number, since it uses less digits than its factorization.

581128468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5487 (or 5485 counting only the distinct ones).

The product of its digits is 122880, while the sum is 43.

The square root of 581128468 is about 24106.6063144525. The cubic root of 581128468 is about 834.4955984098.

The spelling of 581128468 in words is "five hundred eighty-one million, one hundred twenty-eight thousand, four hundred sixty-eight".