220204243 has 8 divisors (see below), whose sum is σ = 264907520. Its totient is φ = 178812360.

The previous prime is 220204223. The next prime is 220204267. The reversal of 220204243 is 342402022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220204243 - 2¹⁷ = 220073171 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220204243.

It is not an unprimeable number, because it can be changed into a prime (220204223) 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, 827703 + ... + 827968.

It is an arithmetic number, because the mean of its divisors is an integer number (33113440).

Almost surely, 2^220204243 is an apocalyptic number.

220204243 is a deficient number, since it is larger than the sum of its proper divisors (44703277).

220204243 is a wasteful number, since it uses less digits than its factorization.

220204243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655697.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 220204243 is about 14839.2804070817. The cubic root of 220204243 is about 603.8678304944.

Adding to 220204243 its reverse (342402022), we get a palindrome (562606265).

The spelling of 220204243 in words is "two hundred twenty million, two hundred four thousand, two hundred forty-three".