26409043 has 4 divisors (see below), whose sum is σ = 27053208. Its totient is φ = 25764880.

The previous prime is 26409029. The next prime is 26409077. The reversal of 26409043 is 34090462.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26409043 - 2⁵ = 26409011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26409013) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 322021 + ... + 322102.

It is an arithmetic number, because the mean of its divisors is an integer number (6763302).

Almost surely, 2^26409043 is an apocalyptic number.

26409043 is a deficient number, since it is larger than the sum of its proper divisors (644165).

26409043 is an equidigital number, since it uses as much as digits as its factorization.

26409043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644164.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 26409043 is about 5138.9729518650. The cubic root of 26409043 is about 297.7951048627.

The spelling of 26409043 in words is "twenty-six million, four hundred nine thousand, forty-three".