22469 has 2 divisors, whose sum is σ = 22470. Its totient is φ = 22468.

The previous prime is 22453. The next prime is 22481. The reversal of 22469 is 96422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21025 + 1444 = 145^2 + 38^2 .

It is a cyclic number.

It is not a de Polignac number, because 22469 - 2⁴ = 22453 is a prime.

It is a super-2 number, since 2×22469² = 1009711922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is an Ulam number.

It is a Curzon number.

It is a plaindrome in base 7, base 10 and base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11234 + 11235.

It is an arithmetic number, because the mean of its divisors is an integer number (11235).

2²²⁴⁶⁹ is an apocalyptic number.

It is an amenable number.

22469 is a deficient number, since it is larger than the sum of its proper divisors (1).

22469 is an equidigital number, since it uses as much as digits as its factorization.

22469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 23.

The square root of 22469 is about 149.8966310495. The cubic root of 22469 is about 28.2181095221.

The spelling of 22469 in words is "twenty-two thousand, four hundred sixty-nine".