22230305 has 32 divisors (see below), whose sum is σ = 30046464. Its totient is φ = 15702016.

The previous prime is 22230301. The next prime is 22230311. The reversal of 22230305 is 50303222.

It is not a de Polignac number, because 22230305 - 2² = 22230301 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (22230301) 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 31 ways as a sum of consecutive naturals, for example, 162197 + ... + 162333.

It is an arithmetic number, because the mean of its divisors is an integer number (938952).

Almost surely, 2^22230305 is an apocalyptic number.

It is an amenable number.

22230305 is a deficient number, since it is larger than the sum of its proper divisors (7816159).

22230305 is a wasteful number, since it uses less digits than its factorization.

22230305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265.

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 22230305 is about 4714.9024380150. The cubic root of 22230305 is about 281.1783040294.

Adding to 22230305 its reverse (50303222), we get a palindrome (72533527).

The spelling of 22230305 in words is "twenty-two million, two hundred thirty thousand, three hundred five".