581013948 has 48 divisors (see below), whose sum is σ = 1418376960. Its totient is φ = 184761984.

The previous prime is 581013943. The next prime is 581014003. The reversal of 581013948 is 849310185.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (581013943) 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 15 ways as a sum of consecutive naturals, for example, 110311 + ... + 115457.

It is an arithmetic number, because the mean of its divisors is an integer number (29549520).

Almost surely, 2^581013948 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 581013948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (709188480).

581013948 is an abundant number, since it is smaller than the sum of its proper divisors (837363012).

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

581013948 is a wasteful number, since it uses less digits than its factorization.

581013948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5586 (or 5584 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 581013948 is about 24104.2309149245. The cubic root of 581013948 is about 834.4407782226.

The spelling of 581013948 in words is "five hundred eighty-one million, thirteen thousand, nine hundred forty-eight".