26442005 has 8 divisors (see below), whose sum is σ = 31867992. Its totient is φ = 21061888.

The previous prime is 26441981. The next prime is 26442029. The reversal of 26442005 is 50024462.

26442005 is an esthetic number in base 5, because in such base its adjacent digits differ by 1.

It is an interprime number because it is at equal distance from previous prime (26441981) and next prime (26442029).

It can be written as a sum of positive squares in 4 ways, for example, as 1110916 + 25331089 = 1054^2 + 5033^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26442005 - 2⁶ = 26441941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10184 + ... + 12513.

It is an arithmetic number, because the mean of its divisors is an integer number (3983499).

Almost surely, 2^26442005 is an apocalyptic number.

It is an amenable number.

26442005 is a deficient number, since it is larger than the sum of its proper divisors (5425987).

26442005 is a wasteful number, since it uses less digits than its factorization.

26442005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22935.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 26442005 is about 5142.1790128310. The cubic root of 26442005 is about 297.9189493253.

Adding to 26442005 its reverse (50024462), we get a palindrome (76466467).

The spelling of 26442005 in words is "twenty-six million, four hundred forty-two thousand, five".