581720048 has 160 divisors (see below), whose sum is σ = 1499904000. Its totient is φ = 212179968.

The previous prime is 581720023. The next prime is 581720089. The reversal of 581720048 is 840027185.

581720048 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 970853 + ... + 971451.

It is an arithmetic number, because the mean of its divisors is an integer number (9374400).

Almost surely, 2^581720048 is an apocalyptic number.

581720048 is a gapful number since it is divisible by the number (58) 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 581720048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (749952000).

581720048 is an abundant number, since it is smaller than the sum of its proper divisors (918183952).

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

581720048 is a wasteful number, since it uses less digits than its factorization.

581720048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679 (or 673 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 581720048 is about 24118.8732738493. The cubic root of 581720048 is about 834.7786703474.

The spelling of 581720048 in words is "five hundred eighty-one million, seven hundred twenty thousand, forty-eight".