26086138 has 24 divisors (see below), whose sum is σ = 43678908. Its totient is φ = 11614848.

The previous prime is 26086129. The next prime is 26086169. The reversal of 26086138 is 83168062.

It can be written as a sum of positive squares in 6 ways, for example, as 8838729 + 17247409 = 2973^2 + 4153^2 .

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 11 ways as a sum of consecutive naturals, for example, 21270 + ... + 22462.

Almost surely, 2^26086138 is an apocalyptic number.

26086138 is a deficient number, since it is larger than the sum of its proper divisors (17592770).

26086138 is a wasteful number, since it uses less digits than its factorization.

26086138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266 (or 1237 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 26086138 is about 5107.4590551467. The cubic root of 26086138 is about 296.5764045282.

The spelling of 26086138 in words is "twenty-six million, eighty-six thousand, one hundred thirty-eight".