26442749 has 2 divisors, whose sum is σ = 26442750. Its totient is φ = 26442748.

The previous prime is 26442739. The next prime is 26442817. The reversal of 26442749 is 94724462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25938649 + 504100 = 5093^2 + 710^2 .

It is a cyclic number.

It is not a de Polignac number, because 26442749 - 2⁴ = 26442733 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 (26442739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13221374 + 13221375.

It is an arithmetic number, because the mean of its divisors is an integer number (13221375).

Almost surely, 2^26442749 is an apocalyptic number.

It is an amenable number.

26442749 is a deficient number, since it is larger than the sum of its proper divisors (1).

26442749 is an equidigital number, since it uses as much as digits as its factorization.

26442749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 38.

The square root of 26442749 is about 5142.2513551945. The cubic root of 26442749 is about 297.9217434858.

The spelling of 26442749 in words is "twenty-six million, four hundred forty-two thousand, seven hundred forty-nine".