581132934 has 64 divisors (see below), whose sum is σ = 1330560000. Its totient is φ = 187894080.

The previous prime is 581132933. The next prime is 581132963. The reversal of 581132934 is 439231185.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (581132933) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 439927 + ... + 441245.

It is an arithmetic number, because the mean of its divisors is an integer number (20790000).

Almost surely, 2^581132934 is an apocalyptic number.

581132934 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 581132934, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (665280000).

581132934 is an abundant number, since it is smaller than the sum of its proper divisors (749427066).

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

581132934 is a wasteful number, since it uses less digits than its factorization.

581132934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570 (or 1564 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 581132934 is about 24106.6989444843. The cubic root of 581132934 is about 834.4977361172.

The spelling of 581132934 in words is "five hundred eighty-one million, one hundred thirty-two thousand, nine hundred thirty-four".