22004371 has 2 divisors, whose sum is σ = 22004372. Its totient is φ = 22004370.

The previous prime is 22004363. The next prime is 22004383. The reversal of 22004371 is 17340022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22004371 - 2³ = 22004363 is a prime.

It is not a weakly prime, because it can be changed into another prime (22004321) 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, 11002185 + 11002186.

It is an arithmetic number, because the mean of its divisors is an integer number (11002186).

Almost surely, 2^22004371 is an apocalyptic number.

22004371 is a deficient number, since it is larger than the sum of its proper divisors (1).

22004371 is an equidigital number, since it uses as much as digits as its factorization.

22004371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 22004371 is about 4690.8816868474. The cubic root of 22004371 is about 280.2224889790. Note that the first 3 decimals are identical.

Adding to 22004371 its reverse (17340022), we get a palindrome (39344393).

The spelling of 22004371 in words is "twenty-two million, four thousand, three hundred seventy-one".