22305229 has 4 divisors (see below), whose sum is σ = 22325760. Its totient is φ = 22284700.

The previous prime is 22305187. The next prime is 22305251. The reversal of 22305229 is 92250322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22305229 - 2¹¹ = 22303181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22305329) 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 3 ways as a sum of consecutive naturals, for example, 8539 + ... + 10840.

It is an arithmetic number, because the mean of its divisors is an integer number (5581440).

Almost surely, 2^22305229 is an apocalyptic number.

It is an amenable number.

22305229 is a deficient number, since it is larger than the sum of its proper divisors (20531).

22305229 is a wasteful number, since it uses less digits than its factorization.

22305229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20530.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 22305229 is about 4722.8411999558. The cubic root of 22305229 is about 281.4938399568.

The spelling of 22305229 in words is "twenty-two million, three hundred five thousand, two hundred twenty-nine".