26745728 has 32 divisors (see below), whose sum is σ = 53578560. Its totient is φ = 13298688.

The previous prime is 26745721. The next prime is 26745731. The reversal of 26745728 is 82754762.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26745721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28076 + ... + 29012.

It is an arithmetic number, because the mean of its divisors is an integer number (1674330).

Almost surely, 2^26745728 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 26745728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26789280).

26745728 is an abundant number, since it is smaller than the sum of its proper divisors (26832832).

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

26745728 is an equidigital number, since it uses as much as digits as its factorization.

26745728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1174 (or 1162 counting only the distinct ones).

The product of its digits is 188160, while the sum is 41.

The square root of 26745728 is about 5171.6272100761. The cubic root of 26745728 is about 299.0552799883.

The spelling of 26745728 in words is "twenty-six million, seven hundred forty-five thousand, seven hundred twenty-eight".