22328705 has 16 divisors (see below), whose sum is σ = 32234880. Its totient is φ = 14504832.

The previous prime is 22328689. The next prime is 22328707. The reversal of 22328705 is 50782322.

It is a cyclic number.

It is not a de Polignac number, because 22328705 - 2⁴ = 22328689 is a prime.

It is a super-3 number, since 3×22328705³ (a number of 23 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22328707) 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 15 ways as a sum of consecutive naturals, for example, 16124 + ... + 17453.

It is an arithmetic number, because the mean of its divisors is an integer number (2014680).

Almost surely, 2^22328705 is an apocalyptic number.

It is an amenable number.

22328705 is a deficient number, since it is larger than the sum of its proper divisors (9906175).

22328705 is a wasteful number, since it uses less digits than its factorization.

22328705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33608.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 22328705 is about 4725.3259146857. The cubic root of 22328705 is about 281.5925616861.

The spelling of 22328705 in words is "twenty-two million, three hundred twenty-eight thousand, seven hundred five".