22004039 has 2 divisors, whose sum is σ = 22004040. Its totient is φ = 22004038.

The previous prime is 22004009. The next prime is 22004041. The reversal of 22004039 is 93040022.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22004039 is a prime.

Together with 22004041, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22004039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22004009) 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 as a sum of consecutive naturals, namely, 11002019 + 11002020.

It is an arithmetic number, because the mean of its divisors is an integer number (11002020).

Almost surely, 2^22004039 is an apocalyptic number.

22004039 is a deficient number, since it is larger than the sum of its proper divisors (1).

22004039 is an equidigital number, since it uses as much as digits as its factorization.

22004039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 22004039 is about 4690.8462989103. The cubic root of 22004039 is about 280.2210796479.

The spelling of 22004039 in words is "twenty-two million, four thousand, thirty-nine".