26422189 has 2 divisors, whose sum is σ = 26422190. Its totient is φ = 26422188.

The previous prime is 26422171. The next prime is 26422237. The reversal of 26422189 is 98122462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25908100 + 514089 = 5090^2 + 717^2 .

It is a cyclic number.

It is not a de Polignac number, because 26422189 - 2⁵ = 26422157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26422129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13211094 + 13211095.

It is an arithmetic number, because the mean of its divisors is an integer number (13211095).

Almost surely, 2^26422189 is an apocalyptic number.

It is an amenable number.

26422189 is a deficient number, since it is larger than the sum of its proper divisors (1).

26422189 is an equidigital number, since it uses as much as digits as its factorization.

26422189 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 26422189 is about 5140.2518420793. The cubic root of 26422189 is about 297.8445092157.

The spelling of 26422189 in words is "twenty-six million, four hundred twenty-two thousand, one hundred eighty-nine".