22402169 has 2 divisors, whose sum is σ = 22402170. Its totient is φ = 22402168.

The previous prime is 22402091. The next prime is 22402217. The reversal of 22402169 is 96120422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20475625 + 1926544 = 4525^2 + 1388^2 .

It is a cyclic number.

It is not a de Polignac number, because 22402169 - 2¹² = 22398073 is a prime.

It is a super-2 number, since 2×22402169² = 1003714351809122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22402469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11201084 + 11201085.

It is an arithmetic number, because the mean of its divisors is an integer number (11201085).

Almost surely, 2^22402169 is an apocalyptic number.

It is an amenable number.

22402169 is a deficient number, since it is larger than the sum of its proper divisors (1).

22402169 is an equidigital number, since it uses as much as digits as its factorization.

22402169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 22402169 is about 4733.0929633803. The cubic root of 22402169 is about 281.9010475550.

The spelling of 22402169 in words is "twenty-two million, four hundred two thousand, one hundred sixty-nine".