26126409 has 4 divisors (see below), whose sum is σ = 34835216. Its totient is φ = 17417604.

The previous prime is 26126383. The next prime is 26126411. The reversal of 26126409 is 90462162.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 26126409 - 2⁸ = 26126153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26126479) 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 in 3 ways as a sum of consecutive naturals, for example, 4354399 + ... + 4354404.

It is an arithmetic number, because the mean of its divisors is an integer number (8708804).

Almost surely, 2^26126409 is an apocalyptic number.

It is an amenable number.

26126409 is a deficient number, since it is larger than the sum of its proper divisors (8708807).

26126409 is an equidigital number, since it uses as much as digits as its factorization.

26126409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8708806.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 26126409 is about 5111.3999060923. The cubic root of 26126409 is about 296.7289413236.

The spelling of 26126409 in words is "twenty-six million, one hundred twenty-six thousand, four hundred nine".