22342291 has 2 divisors, whose sum is σ = 22342292. Its totient is φ = 22342290.

The previous prime is 22342283. The next prime is 22342303. The reversal of 22342291 is 19224322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22342291 - 2³ = 22342283 is a prime.

It is not a weakly prime, because it can be changed into another prime (22342211) 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, 11171145 + 11171146.

It is an arithmetic number, because the mean of its divisors is an integer number (11171146).

Almost surely, 2^22342291 is an apocalyptic number.

22342291 is a deficient number, since it is larger than the sum of its proper divisors (1).

22342291 is an equidigital number, since it uses as much as digits as its factorization.

22342291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 25.

The square root of 22342291 is about 4726.7632688765. The cubic root of 22342291 is about 281.6496621894.

The spelling of 22342291 in words is "twenty-two million, three hundred forty-two thousand, two hundred ninety-one".