26138826 has 48 divisors (see below), whose sum is σ = 68537664. Its totient is φ = 7028352.

The previous prime is 26138807. The next prime is 26138837. The reversal of 26138826 is 62883162.

It is a Curzon 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 23 ways as a sum of consecutive naturals, for example, 3960 + ... + 8243.

It is an arithmetic number, because the mean of its divisors is an integer number (1427868).

Almost surely, 2^26138826 is an apocalyptic number.

26138826 is an abundant number, since it is smaller than the sum of its proper divisors (42398838).

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

26138826 is a wasteful number, since it uses less digits than its factorization.

26138826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12235 (or 12232 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 26138826 is about 5112.6143996981. The cubic root of 26138826 is about 296.7759422939.

The spelling of 26138826 in words is "twenty-six million, one hundred thirty-eight thousand, eight hundred twenty-six".