220385323 has 4 divisors (see below), whose sum is σ = 220469328. Its totient is φ = 220301320.

The previous prime is 220385281. The next prime is 220385327. The reversal of 220385323 is 323583022.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220385323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220385291 and 220385300.

It is not an unprimeable number, because it can be changed into a prime (220385327) 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, 37936 + ... + 43357.

It is an arithmetic number, because the mean of its divisors is an integer number (55117332).

Almost surely, 2^220385323 is an apocalyptic number.

220385323 is a deficient number, since it is larger than the sum of its proper divisors (84005).

220385323 is an equidigital number, since it uses as much as digits as its factorization.

220385323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84004.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 220385323 is about 14845.3805272886. The cubic root of 220385323 is about 604.0333108465.

The spelling of 220385323 in words is "two hundred twenty million, three hundred eighty-five thousand, three hundred twenty-three".