22279109 has 8 divisors (see below), whose sum is σ = 22687392. Its totient is φ = 21874320.

The previous prime is 22279099. The next prime is 22279121. The reversal of 22279109 is 90197222.

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 22279109 - 2⁴ = 22279093 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 (22279139) 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, 14282 + ... + 15764.

It is an arithmetic number, because the mean of its divisors is an integer number (2835924).

Almost surely, 2^22279109 is an apocalyptic number.

It is an amenable number.

22279109 is a deficient number, since it is larger than the sum of its proper divisors (408283).

22279109 is a wasteful number, since it uses less digits than its factorization.

22279109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1747.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 22279109 is about 4720.0751053347. The cubic root of 22279109 is about 281.3839181831.

The spelling of 22279109 in words is "twenty-two million, two hundred seventy-nine thousand, one hundred nine".