26638056 has 48 divisors (see below), whose sum is σ = 72972900. Its totient is φ = 8777472.

The previous prime is 26638009. The next prime is 26638063. The reversal of 26638056 is 65083662.

It can be written as a sum of positive squares in 2 ways, for example, as 25704900 + 933156 = 5070^2 + 966^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 26638056.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4330 + ... + 8486.

Almost surely, 2^26638056 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 26638056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36486450).

26638056 is an abundant number, since it is smaller than the sum of its proper divisors (46334844).

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

26638056 is a wasteful number, since it uses less digits than its factorization.

26638056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4258 (or 4251 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 26638056 is about 5161.2068356151. The cubic root of 26638056 is about 298.6534315546.

The spelling of 26638056 in words is "twenty-six million, six hundred thirty-eight thousand, fifty-six".