305234221 has 8 divisors (see below), whose sum is σ = 324482400. Its totient is φ = 286304400.

The previous prime is 305234203. The next prime is 305234233. The reversal of 305234221 is 122432503.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 305234221 - 2¹¹ = 305232173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 305234192 and 305234201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305234621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77611 + ... + 81448.

It is an arithmetic number, because the mean of its divisors is an integer number (40560300).

Almost surely, 2^305234221 is an apocalyptic number.

It is an amenable number.

305234221 is a deficient number, since it is larger than the sum of its proper divisors (19248179).

305234221 is a wasteful number, since it uses less digits than its factorization.

305234221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159179.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 305234221 is about 17470.9536373948. The cubic root of 305234221 is about 673.3038133373.

Adding to 305234221 its reverse (122432503), we get a palindrome (427666724).

It can be divided in two parts, 3052 and 34221, that added together give a palindrome (37273).

The spelling of 305234221 in words is "three hundred five million, two hundred thirty-four thousand, two hundred twenty-one".