305032223 has 4 divisors (see below), whose sum is σ = 305291688. Its totient is φ = 304772760.

The previous prime is 305032199. The next prime is 305032243. The reversal of 305032223 is 322230503.

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 305032223 - 2¹⁶ = 304966687 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 305032195 and 305032204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305032243) 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, 127961 + ... + 130322.

It is an arithmetic number, because the mean of its divisors is an integer number (76322922).

Almost surely, 2^305032223 is an apocalyptic number.

305032223 is a deficient number, since it is larger than the sum of its proper divisors (259465).

305032223 is a wasteful number, since it uses less digits than its factorization.

305032223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259464.

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 305032223 is about 17465.1717140142. The cubic root of 305032223 is about 673.1552541573.

Adding to 305032223 its reverse (322230503), we get a palindrome (627262726).

The spelling of 305032223 in words is "three hundred five million, thirty-two thousand, two hundred twenty-three".