22109239 has 8 divisors (see below), whose sum is σ = 22771728. Its totient is φ = 21450240.

The previous prime is 22109237. The next prime is 22109249. The reversal of 22109239 is 93290122.

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 22109239 - 2¹ = 22109237 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 (22109237) 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 7 ways as a sum of consecutive naturals, for example, 17559 + ... + 18775.

It is an arithmetic number, because the mean of its divisors is an integer number (2846466).

Almost surely, 2^22109239 is an apocalyptic number.

22109239 is a deficient number, since it is larger than the sum of its proper divisors (662489).

22109239 is a wasteful number, since it uses less digits than its factorization.

22109239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1745.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 22109239 is about 4702.0462566844. The cubic root of 22109239 is about 280.6669432829. Note that the first 3 decimals are identical.

It can be divided in two parts, 2210 and 9239, that added together give a square (11449 = 107²).

The spelling of 22109239 in words is "twenty-two million, one hundred nine thousand, two hundred thirty-nine".