220045323 has 4 divisors (see below), whose sum is σ = 293393768. Its totient is φ = 146696880.

The previous prime is 220045321. The next prime is 220045337. The reversal of 220045323 is 323540022.

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

It is not a de Polignac number, because 220045323 - 2¹ = 220045321 is a prime.

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 220045323.

It is not an unprimeable number, because it can be changed into a prime (220045321) 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, 36674218 + ... + 36674223.

It is an arithmetic number, because the mean of its divisors is an integer number (73348442).

Almost surely, 2^220045323 is an apocalyptic number.

220045323 is a deficient number, since it is larger than the sum of its proper divisors (73348445).

220045323 is an equidigital number, since it uses as much as digits as its factorization.

220045323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73348444.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 220045323 is about 14833.9247335289. The cubic root of 220045323 is about 603.7225263444.

Adding to 220045323 its reverse (323540022), we get a palindrome (543585345).

The spelling of 220045323 in words is "two hundred twenty million, forty-five thousand, three hundred twenty-three".