26444489 has 2 divisors, whose sum is σ = 26444490. Its totient is φ = 26444488.

The previous prime is 26444477. The next prime is 26444501. The reversal of 26444489 is 98444462.

It is a balanced prime because it is at equal distance from previous prime (26444477) and next prime (26444501).

It can be written as a sum of positive squares in only one way, i.e., 25603600 + 840889 = 5060^2 + 917^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26444489 is a prime.

It is a super-2 number, since 2×26444489² = 1398621996942242, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26444389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13222244 + 13222245.

It is an arithmetic number, because the mean of its divisors is an integer number (13222245).

Almost surely, 2^26444489 is an apocalyptic number.

It is an amenable number.

26444489 is a deficient number, since it is larger than the sum of its proper divisors (1).

26444489 is an equidigital number, since it uses as much as digits as its factorization.

26444489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 221184, while the sum is 41.

The square root of 26444489 is about 5142.4205390069. The cubic root of 26444489 is about 297.9282780115.

The spelling of 26444489 in words is "twenty-six million, four hundred forty-four thousand, four hundred eighty-nine".