22298429 has 2 divisors, whose sum is σ = 22298430. Its totient is φ = 22298428.

The previous prime is 22298387. The next prime is 22298443. The reversal of 22298429 is 92489222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15132100 + 7166329 = 3890^2 + 2677^2 .

It is a cyclic number.

It is not a de Polignac number, because 22298429 - 2²⁴ = 5521213 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22298392 and 22298401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22298449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11149214 + 11149215.

It is an arithmetic number, because the mean of its divisors is an integer number (11149215).

Almost surely, 2^22298429 is an apocalyptic number.

It is an amenable number.

22298429 is a deficient number, since it is larger than the sum of its proper divisors (1).

22298429 is an equidigital number, since it uses as much as digits as its factorization.

22298429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 38.

The square root of 22298429 is about 4722.1212394431. The cubic root of 22298429 is about 281.4652315281.

The spelling of 22298429 in words is "twenty-two million, two hundred ninety-eight thousand, four hundred twenty-nine".