220434243 has 4 divisors (see below), whose sum is σ = 293912328. Its totient is φ = 146956160.

The previous prime is 220434199. The next prime is 220434283. The reversal of 220434243 is 342434022.

220434243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 220434243 - 2¹⁴ = 220417859 is a prime.

It is a super-4 number, since 4×220434243⁴ (a number of 34 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (220434283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36739038 + ... + 36739043.

It is an arithmetic number, because the mean of its divisors is an integer number (73478082).

Almost surely, 2^220434243 is an apocalyptic number.

220434243 is a deficient number, since it is larger than the sum of its proper divisors (73478085).

220434243 is an equidigital number, since it uses as much as digits as its factorization.

220434243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73478084.

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 220434243 is about 14847.0280864556. The cubic root of 220434243 is about 604.0780009421.

Adding to 220434243 its reverse (342434022), we get a palindrome (562868265).

The spelling of 220434243 in words is "two hundred twenty million, four hundred thirty-four thousand, two hundred forty-three".