22168429 has 2 divisors, whose sum is σ = 22168430. Its totient is φ = 22168428.

The previous prime is 22168417. The next prime is 22168457. The reversal of 22168429 is 92486122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21178404 + 990025 = 4602^2 + 995^2 .

It is a cyclic number.

It is not a de Polignac number, because 22168429 - 2⁵ = 22168397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22168394 and 22168403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22168409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11084214 + 11084215.

It is an arithmetic number, because the mean of its divisors is an integer number (11084215).

Almost surely, 2^22168429 is an apocalyptic number.

It is an amenable number.

22168429 is a deficient number, since it is larger than the sum of its proper divisors (1).

22168429 is an equidigital number, since it uses as much as digits as its factorization.

22168429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 34.

The square root of 22168429 is about 4708.3361179933. The cubic root of 22168429 is about 280.9171836679.

The spelling of 22168429 in words is "twenty-two million, one hundred sixty-eight thousand, four hundred twenty-nine".