26728788 has 12 divisors (see below), whose sum is σ = 62367200. Its totient is φ = 8909592.

The previous prime is 26728787. The next prime is 26728831. The reversal of 26728788 is 88782762.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26728787) 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, 1113688 + ... + 1113711.

Almost surely, 2^26728788 is an apocalyptic number.

It is an amenable number.

26728788 is an abundant number, since it is smaller than the sum of its proper divisors (35638412).

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

26728788 is a wasteful number, since it uses less digits than its factorization.

26728788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2227406 (or 2227404 counting only the distinct ones).

The product of its digits is 602112, while the sum is 48.

The square root of 26728788 is about 5169.9891682672. The cubic root of 26728788 is about 298.9921288890.

The spelling of 26728788 in words is "twenty-six million, seven hundred twenty-eight thousand, seven hundred eighty-eight".