22040109 has 48 divisors (see below), whose sum is σ = 41513472. Its totient is φ = 10934784.

The previous prime is 22040107. The next prime is 22040113. The reversal of 22040109 is 90104022.

It is not a de Polignac number, because 22040109 - 2¹ = 22040107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22040091 and 22040100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22040107) 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 47 ways as a sum of consecutive naturals, for example, 13132 + ... + 14714.

It is an arithmetic number, because the mean of its divisors is an integer number (864864).

Almost surely, 2^22040109 is an apocalyptic number.

It is an amenable number.

22040109 is a deficient number, since it is larger than the sum of its proper divisors (19473363).

22040109 is a wasteful number, since it uses less digits than its factorization.

22040109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1626 (or 1623 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 22040109 is about 4694.6894465981. The cubic root of 22040109 is about 280.3741130135.

The spelling of 22040109 in words is "twenty-two million, forty thousand, one hundred nine".