591280 has 40 divisors (see below), whose sum is σ = 1450800. Its totient is φ = 223488.

The previous prime is 591271. The next prime is 591287. The reversal of 591280 is 82195.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×591280² = 699224076800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (591287) by changing a digit.

591280 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1326 + ... + 1714.

It is an arithmetic number, because the mean of its divisors is an integer number (36270).

2⁵⁹¹²⁸⁰ 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 591280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (725400).

591280 is an abundant number, since it is smaller than the sum of its proper divisors (859520).

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

591280 is a wasteful number, since it uses less digits than its factorization.

591280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421 (or 415 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 591280 is about 768.9473323967. The cubic root of 591280 is about 83.9326747008.

The spelling of 591280 in words is "five hundred ninety-one thousand, two hundred eighty".