220530 has 16 divisors (see below), whose sum is σ = 529344. Its totient is φ = 58800.

The previous prime is 220529. The next prime is 220537. The reversal of 220530 is 35022.

It is not an unprimeable number, because it can be changed into a prime (220537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3646 + ... + 3705.

It is an arithmetic number, because the mean of its divisors is an integer number (33084).

2²²⁰⁵³⁰ is an apocalyptic number.

220530 is an abundant number, since it is smaller than the sum of its proper divisors (308814).

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

220530 is a wasteful number, since it uses less digits than its factorization.

220530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7361.

The product of its (nonzero) digits is 60, while the sum is 12.

The square root of 220530 is about 469.6062180168. The cubic root of 220530 is about 60.4165459107.

Adding to 220530 its reverse (35022), we get a palindrome (255552).

The spelling of 220530 in words is "two hundred twenty thousand, five hundred thirty".