581980992 has 224 divisors, whose sum is σ = 1723461120. Its totient is φ = 172523520.

The previous prime is 581980979. The next prime is 581980999. The reversal of 581980992 is 299089185.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (581980999) 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, 7366809 + ... + 7366887.

Almost surely, 2^581980992 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 581980992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (861730560).

581980992 is an abundant number, since it is smaller than the sum of its proper divisors (1141480128).

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

581980992 is a wasteful number, since it uses less digits than its factorization.

581980992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 51.

The square root of 581980992 is about 24124.2822069383. The cubic root of 581980992 is about 834.9034714570.

The spelling of 581980992 in words is "five hundred eighty-one million, nine hundred eighty thousand, nine hundred ninety-two".