530720 has 48 divisors (see below), whose sum is σ = 1306368. Its totient is φ = 203520.

The previous prime is 530713. The next prime is 530731. The reversal of 530720 is 27035.

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

530720 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 (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4907 + ... + 5013.

It is an arithmetic number, because the mean of its divisors is an integer number (27216).

2⁵³⁰⁷²⁰ 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 530720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (653184).

530720 is an abundant number, since it is smaller than the sum of its proper divisors (775648).

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

530720 is a wasteful number, since it uses less digits than its factorization.

530720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 17.

The square root of 530720 is about 728.5053191295. The cubic root of 530720 is about 80.9633528271.

Adding to 530720 its reverse (27035), we get a palindrome (557755).

The spelling of 530720 in words is "five hundred thirty thousand, seven hundred twenty".