220243243 has 4 divisors (see below), whose sum is σ = 240265368. Its totient is φ = 200221120.

The previous prime is 220243241. The next prime is 220243259. The reversal of 220243243 is 342342022.

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

It is not a de Polignac number, because 220243243 - 2¹ = 220243241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220243241) 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, 10011046 + ... + 10011067.

It is an arithmetic number, because the mean of its divisors is an integer number (60066342).

Almost surely, 2^220243243 is an apocalyptic number.

220243243 is a deficient number, since it is larger than the sum of its proper divisors (20022125).

220243243 is a wasteful number, since it uses less digits than its factorization.

220243243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20022124.

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 220243243 is about 14840.5944287956. The cubic root of 220243243 is about 603.9034783923.

Adding to 220243243 its reverse (342342022), we get a palindrome (562585265).

The spelling of 220243243 in words is "two hundred twenty million, two hundred forty-three thousand, two hundred forty-three".