22236413 has 2 divisors, whose sum is σ = 22236414. Its totient is φ = 22236412.

The previous prime is 22236397. The next prime is 22236427. The reversal of 22236413 is 31463222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20268004 + 1968409 = 4502^2 + 1403^2 .

It is a cyclic number.

It is not a de Polignac number, because 22236413 - 2⁴ = 22236397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22236013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11118206 + 11118207.

It is an arithmetic number, because the mean of its divisors is an integer number (11118207).

Almost surely, 2^22236413 is an apocalyptic number.

It is an amenable number.

22236413 is a deficient number, since it is larger than the sum of its proper divisors (1).

22236413 is an equidigital number, since it uses as much as digits as its factorization.

22236413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 23.

The square root of 22236413 is about 4715.5501269735. The cubic root of 22236413 is about 281.2040538607.

Adding to 22236413 its reverse (31463222), we get a palindrome (53699635).

The spelling of 22236413 in words is "twenty-two million, two hundred thirty-six thousand, four hundred thirteen".