26773680 has 80 divisors (see below), whose sum is σ = 83503584. Its totient is φ = 7096320.

The previous prime is 26773673. The next prime is 26773711. The reversal of 26773680 is 8637762.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67242 + ... + 67638.

Almost surely, 2^26773680 is an apocalyptic number.

26773680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26773680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41751792).

26773680 is an abundant number, since it is smaller than the sum of its proper divisors (56729904).

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

26773680 is a wasteful number, since it uses less digits than its factorization.

26773680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694 (or 688 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 26773680 is about 5174.3289419982. The cubic root of 26773680 is about 299.1594247550.

The spelling of 26773680 in words is "twenty-six million, seven hundred seventy-three thousand, six hundred eighty".