26644672 has 42 divisors (see below), whose sum is σ = 55342028. Its totient is φ = 12726912.

The previous prime is 26644643. The next prime is 26644679. The reversal of 26644672 is 27644662.

It is not an unprimeable number, because it can be changed into a prime (26644679) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33463 + ... + 34249.

Almost surely, 2^26644672 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 26644672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27671014).

26644672 is an abundant number, since it is smaller than the sum of its proper divisors (28697356).

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

26644672 is an equidigital number, since it uses as much as digits as its factorization.

26644672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845 (or 812 counting only the distinct ones).

The product of its digits is 96768, while the sum is 37.

The square root of 26644672 is about 5161.8477311908. The cubic root of 26644672 is about 298.6781546743.

The spelling of 26644672 in words is "twenty-six million, six hundred forty-four thousand, six hundred seventy-two".