22406413 has 2 divisors, whose sum is σ = 22406414. Its totient is φ = 22406412.

The previous prime is 22406411. The next prime is 22406429. The reversal of 22406413 is 31460422.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21883684 + 522729 = 4678^2 + 723^2 .

It is a cyclic number.

It is not a de Polignac number, because 22406413 - 2¹ = 22406411 is a prime.

Together with 22406411, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22406411) 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, 11203206 + 11203207.

It is an arithmetic number, because the mean of its divisors is an integer number (11203207).

Almost surely, 2^22406413 is an apocalyptic number.

It is an amenable number.

22406413 is a deficient number, since it is larger than the sum of its proper divisors (1).

22406413 is an equidigital number, since it uses as much as digits as its factorization.

22406413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 22406413 is about 4733.5412747752. The cubic root of 22406413 is about 281.9188481007.

Adding to 22406413 its reverse (31460422), we get a palindrome (53866835).

The spelling of 22406413 in words is "twenty-two million, four hundred six thousand, four hundred thirteen".