22105389 has 8 divisors (see below), whose sum is σ = 31207680. Its totient is φ = 13870016.

The previous prime is 22105373. The next prime is 22105403. The reversal of 22105389 is 98350122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22105389 - 2⁴ = 22105373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22105339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216669 + ... + 216770.

It is an arithmetic number, because the mean of its divisors is an integer number (3900960).

Almost surely, 2^22105389 is an apocalyptic number.

It is an amenable number.

22105389 is a deficient number, since it is larger than the sum of its proper divisors (9102291).

22105389 is a wasteful number, since it uses less digits than its factorization.

22105389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433459.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 22105389 is about 4701.6368426326. The cubic root of 22105389 is about 280.6506509920.

The spelling of 22105389 in words is "twenty-two million, one hundred five thousand, three hundred eighty-nine".