220244423 has 4 divisors (see below), whose sum is σ = 251707920. Its totient is φ = 188780928.

The previous prime is 220244393. The next prime is 220244441. The reversal of 220244423 is 324442022.

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

It is not a de Polignac number, because 220244423 - 2⁶ = 220244359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220244923) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 15731738 + ... + 15731751.

It is an arithmetic number, because the mean of its divisors is an integer number (62926980).

Almost surely, 2^220244423 is an apocalyptic number.

220244423 is a deficient number, since it is larger than the sum of its proper divisors (31463497).

220244423 is an equidigital number, since it uses as much as digits as its factorization.

220244423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31463496.

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 220244423 is about 14840.6341845623. The cubic root of 220244423 is about 603.9045569042.

Adding to 220244423 its reverse (324442022), we get a palindrome (544686445).

The spelling of 220244423 in words is "two hundred twenty million, two hundred forty-four thousand, four hundred twenty-three".