581461872 has 20 divisors (see below), whose sum is σ = 1502109960. Its totient is φ = 193820608.

The previous prime is 581461847. The next prime is 581461963. The reversal of 581461872 is 278164185.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6056847 + ... + 6056942.

It is an arithmetic number, because the mean of its divisors is an integer number (75105498).

Almost surely, 2^581461872 is an apocalyptic number.

It is an amenable number.

581461872 is an abundant number, since it is smaller than the sum of its proper divisors (920648088).

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

581461872 is a wasteful number, since it uses less digits than its factorization.

581461872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12113800 (or 12113794 counting only the distinct ones).

The product of its digits is 107520, while the sum is 42.

The square root of 581461872 is about 24113.5205227275. The cubic root of 581461872 is about 834.6551563477.

The spelling of 581461872 in words is "five hundred eighty-one million, four hundred sixty-one thousand, eight hundred seventy-two".