581520968 has 32 divisors (see below), whose sum is σ = 1247702400. Its totient is φ = 248906112.

The previous prime is 581520959. The next prime is 581521001. The reversal of 581520968 is 869025185.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40796 + ... + 53172.

It is an arithmetic number, because the mean of its divisors is an integer number (38990700).

Almost surely, 2^581520968 is an apocalyptic number.

It is an amenable number.

581520968 is an abundant number, since it is smaller than the sum of its proper divisors (666181432).

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

581520968 is a wasteful number, since it uses less digits than its factorization.

581520968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13229 (or 13225 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 44.

The square root of 581520968 is about 24114.7458622313. The cubic root of 581520968 is about 834.6834316956.

The spelling of 581520968 in words is "five hundred eighty-one million, five hundred twenty thousand, nine hundred sixty-eight".