26138672 has 80 divisors (see below), whose sum is σ = 61662720. Its totient is φ = 10492416.

The previous prime is 26138669. The next prime is 26138681. The reversal of 26138672 is 27683162.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 187979 + ... + 188117.

It is an arithmetic number, because the mean of its divisors is an integer number (770784).

Almost surely, 2^26138672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26138672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30831360).

26138672 is an abundant number, since it is smaller than the sum of its proper divisors (35524048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26138672 is a wasteful number, since it uses less digits than its factorization.

26138672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250 (or 244 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 26138672 is about 5112.5993388882. The cubic root of 26138672 is about 296.7753594625.

The spelling of 26138672 in words is "twenty-six million, one hundred thirty-eight thousand, six hundred seventy-two".