22030305 has 64 divisors (see below), whose sum is σ = 40919040. Its totient is φ = 10022400.

The previous prime is 22030301. The next prime is 22030321. The reversal of 22030305 is 50303022.

It is not a de Polignac number, because 22030305 - 2² = 22030301 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (22030301) 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 63 ways as a sum of consecutive naturals, for example, 301749 + ... + 301821.

It is an arithmetic number, because the mean of its divisors is an integer number (639360).

Almost surely, 2^22030305 is an apocalyptic number.

It is an amenable number.

22030305 is a deficient number, since it is larger than the sum of its proper divisors (18888735).

22030305 is a wasteful number, since it uses less digits than its factorization.

22030305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182.

The product of its (nonzero) digits is 180, while the sum is 15.

The square root of 22030305 is about 4693.6451719319. The cubic root of 22030305 is about 280.3325343401.

Adding to 22030305 its reverse (50303022), we get a palindrome (72333327).

The spelling of 22030305 in words is "twenty-two million, thirty thousand, three hundred five".