305230233 has 64 divisors (see below), whose sum is σ = 524040192. Its totient is φ = 153454080.

The previous prime is 305230169. The next prime is 305230271. The reversal of 305230233 is 332032503.

It is not a de Polignac number, because 305230233 - 2⁶ = 305230169 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (305230273) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 1309885 + ... + 1310117.

It is an arithmetic number, because the mean of its divisors is an integer number (8188128).

Almost surely, 2^305230233 is an apocalyptic number.

305230233 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

305230233 is a deficient number, since it is larger than the sum of its proper divisors (218809959).

305230233 is a wasteful number, since it uses less digits than its factorization.

305230233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414.

The product of its (nonzero) digits is 1620, while the sum is 21.

The square root of 305230233 is about 17470.8395047290. The cubic root of 305230233 is about 673.3008810019.

Adding to 305230233 its reverse (332032503), we get a palindrome (637262736).

The spelling of 305230233 in words is "three hundred five million, two hundred thirty thousand, two hundred thirty-three".