305220214 has 16 divisors (see below), whose sum is σ = 495173952. Its totient is φ = 140263488.

The previous prime is 305220173. The next prime is 305220229. The reversal of 305220214 is 412022503.

305220214 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 305220191 and 305220200.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 19134 + ... + 31249.

It is an arithmetic number, because the mean of its divisors is an integer number (30948372).

Almost surely, 2^305220214 is an apocalyptic number.

305220214 is a deficient number, since it is larger than the sum of its proper divisors (189953738).

305220214 is a wasteful number, since it uses less digits than its factorization.

305220214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50631.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 305220214 is about 17470.5527674427. The cubic root of 305220214 is about 673.2935140216.

Adding to 305220214 its reverse (412022503), we get a palindrome (717242717).

The spelling of 305220214 in words is "three hundred five million, two hundred twenty thousand, two hundred fourteen".