26988544 has 52 divisors (see below), whose sum is σ = 58975200. Its totient is φ = 12247040.

The previous prime is 26988527. The next prime is 26988557. The reversal of 26988544 is 44588962.

It is a junction number, because it is equal to n+sod(n) for n = 26988494 and 26988503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44757 + ... + 45355.

Almost surely, 2^26988544 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 26988544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29487600).

26988544 is an abundant number, since it is smaller than the sum of its proper divisors (31986656).

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

26988544 is an equidigital number, since it uses as much as digits as its factorization.

26988544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634 (or 612 counting only the distinct ones).

The product of its digits is 552960, while the sum is 46.

The square root of 26988544 is about 5195.0499516367. The cubic root of 26988544 is about 299.9575643680.

Adding to 26988544 its product of digits (552960), we get a square (27541504 = 5248²).

The spelling of 26988544 in words is "twenty-six million, nine hundred eighty-eight thousand, five hundred forty-four".