26065728 has 126 divisors (see below), whose sum is σ = 81846674. Its totient is φ = 7884288.

The previous prime is 26065687. The next prime is 26065759. The reversal of 26065728 is 82756062.

It can be written as a sum of positive squares in only one way, i.e., 18045504 + 8020224 = 4248^2 + 2832^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 26065692 and 26065701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 441763 + ... + 441821.

Almost surely, 2^26065728 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 26065728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40923337).

26065728 is an abundant number, since it is smaller than the sum of its proper divisors (55780946).

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

26065728 is a wasteful number, since it uses less digits than its factorization.

26065728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 26065728 is about 5105.4606060570. The cubic root of 26065728 is about 296.4990364414.

The spelling of 26065728 in words is "twenty-six million, sixty-five thousand, seven hundred twenty-eight".