22422329 has 2 divisors, whose sum is σ = 22422330. Its totient is φ = 22422328.

The previous prime is 22422317. The next prime is 22422347. The reversal of 22422329 is 92322422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22306729 + 115600 = 4723^2 + 340^2 .

It is a cyclic number.

It is not a de Polignac number, because 22422329 - 2⁸ = 22422073 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22422298 and 22422307.

It is not a weakly prime, because it can be changed into another prime (22422529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11211164 + 11211165.

It is an arithmetic number, because the mean of its divisors is an integer number (11211165).

Almost surely, 2^22422329 is an apocalyptic number.

It is an amenable number.

22422329 is a deficient number, since it is larger than the sum of its proper divisors (1).

22422329 is an equidigital number, since it uses as much as digits as its factorization.

22422329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 26.

The square root of 22422329 is about 4735.2221700782. Note that the first 3 decimals coincide. The cubic root of 22422329 is about 281.9855843276.

The spelling of 22422329 in words is "twenty-two million, four hundred twenty-two thousand, three hundred twenty-nine".