220443030 has 24 divisors (see below), whose sum is σ = 573152112. Its totient is φ = 58784784.

The previous prime is 220443011. The next prime is 220443037. The reversal of 220443030 is 30344022.

220443030 is a `hidden beast` number, since 2 + 204 + 430 + 30 = 666.

220443030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 220442994 and 220443012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220443037) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1224594 + ... + 1224773.

It is an arithmetic number, because the mean of its divisors is an integer number (23881338).

Almost surely, 2^220443030 is an apocalyptic number.

220443030 is an abundant number, since it is smaller than the sum of its proper divisors (352709082).

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

220443030 is a wasteful number, since it uses less digits than its factorization.

220443030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2449380 (or 2449377 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 220443030 is about 14847.3240013142. The cubic root of 220443030 is about 604.0860274670.

Adding to 220443030 its reverse (30344022), we get a palindrome (250787052).

The spelling of 220443030 in words is "two hundred twenty million, four hundred forty-three thousand, thirty".