26528138 has 16 divisors (see below), whose sum is σ = 48975360. Its totient is φ = 10494576.

The previous prime is 26528083. The next prime is 26528153. The reversal of 26528138 is 83182562.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 26528098 and 26528107.

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 7 ways as a sum of consecutive naturals, for example, 72698 + ... + 73061.

It is an arithmetic number, because the mean of its divisors is an integer number (3060960).

Almost surely, 2^26528138 is an apocalyptic number.

26528138 is a deficient number, since it is larger than the sum of its proper divisors (22447222).

26528138 is a wasteful number, since it uses less digits than its factorization.

26528138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145781.

The product of its digits is 23040, while the sum is 35.

The square root of 26528138 is about 5150.5473495542. The cubic root of 26528138 is about 298.2420821661.

The spelling of 26528138 in words is "twenty-six million, five hundred twenty-eight thousand, one hundred thirty-eight".