581486064 has 40 divisors (see below), whose sum is σ = 1527640320. Its totient is φ = 190542528.

The previous prime is 581486063. The next prime is 581486077. The reversal of 581486064 is 460684185.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (581486063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99832 + ... + 105495.

It is an arithmetic number, because the mean of its divisors is an integer number (38191008).

Almost surely, 2^581486064 is an apocalyptic number.

It is an amenable number.

581486064 is an abundant number, since it is smaller than the sum of its proper divisors (946154256).

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

581486064 is a wasteful number, since it uses less digits than its factorization.

581486064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205397 (or 205391 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 581486064 is about 24114.0221448020. The cubic root of 581486064 is about 834.6667315965. Note that the first 3 decimals are identical.

The spelling of 581486064 in words is "five hundred eighty-one million, four hundred eighty-six thousand, sixty-four".