220030344 has 80 divisors (see below), whose sum is σ = 623866320. Its totient is φ = 72442080.

The previous prime is 220030289. The next prime is 220030367. The reversal of 220030344 is 443030022.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 51739 + ... + 55829.

It is an arithmetic number, because the mean of its divisors is an integer number (7798329).

Almost surely, 2^220030344 is an apocalyptic number.

220030344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220030344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (311933160).

220030344 is an abundant number, since it is smaller than the sum of its proper divisors (403835976).

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

220030344 is a wasteful number, since it uses less digits than its factorization.

220030344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4192 (or 4179 counting only the distinct ones).

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

The square root of 220030344 is about 14833.4198349538. The cubic root of 220030344 is about 603.7088270985.

Adding to 220030344 its reverse (443030022), we get a palindrome (663060366).

The spelling of 220030344 in words is "two hundred twenty million, thirty thousand, three hundred forty-four".