26422399 has 2 divisors, whose sum is σ = 26422400. Its totient is φ = 26422398.

The previous prime is 26422387. The next prime is 26422421. The reversal of 26422399 is 99322462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26422399 - 2¹¹ = 26420351 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26422309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13211199 + 13211200.

It is an arithmetic number, because the mean of its divisors is an integer number (13211200).

Almost surely, 2^26422399 is an apocalyptic number.

26422399 is a deficient number, since it is larger than the sum of its proper divisors (1).

26422399 is an equidigital number, since it uses as much as digits as its factorization.

26422399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 37.

The square root of 26422399 is about 5140.2722690535. The cubic root of 26422399 is about 297.8452982896.

It can be divided in two parts, 2642 and 2399, that added together give a square (5041 = 71²).

The spelling of 26422399 in words is "twenty-six million, four hundred twenty-two thousand, three hundred ninety-nine".