220045530 has 16 divisors (see below), whose sum is σ = 528109344. Its totient is φ = 58678800.

The previous prime is 220045513. The next prime is 220045537. The reversal of 220045530 is 35540022.

220045530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 220045497 and 220045506.

It is not an unprimeable number, because it can be changed into a prime (220045537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3667396 + ... + 3667455.

It is an arithmetic number, because the mean of its divisors is an integer number (33006834).

Almost surely, 2^220045530 is an apocalyptic number.

220045530 is an abundant number, since it is smaller than the sum of its proper divisors (308063814).

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

220045530 is a wasteful number, since it uses less digits than its factorization.

220045530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7334861.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 220045530 is about 14833.9317107772. The cubic root of 220045530 is about 603.7227156546.

Adding to 220045530 its reverse (35540022), we get a palindrome (255585552).

The spelling of 220045530 in words is "two hundred twenty million, forty-five thousand, five hundred thirty".