220804530 has 64 divisors (see below), whose sum is σ = 552562560. Its totient is φ = 56415744.

The previous prime is 220804513. The next prime is 220804541. The reversal of 220804530 is 35408022.

220804530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 220804530.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72886 + ... + 75854.

It is an arithmetic number, because the mean of its divisors is an integer number (8633790).

Almost surely, 2^220804530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220804530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276281280).

220804530 is an abundant number, since it is smaller than the sum of its proper divisors (331758030).

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

220804530 is a wasteful number, since it uses less digits than its factorization.

220804530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3083.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 220804530 is about 14859.4929253996. The cubic root of 220804530 is about 604.4160565557.

The spelling of 220804530 in words is "two hundred twenty million, eight hundred four thousand, five hundred thirty".