27256880 has 40 divisors (see below), whose sum is σ = 72426912. Its totient is φ = 9345024.

The previous prime is 27256861. The next prime is 27256913. The reversal of 27256880 is 8865272.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23777 + ... + 24896.

Almost surely, 2^27256880 is an apocalyptic number.

27256880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27256880 is an abundant number, since it is smaller than the sum of its proper divisors (45170032).

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

27256880 is a wasteful number, since it uses less digits than its factorization.

27256880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48693 (or 48687 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 27256880 is about 5220.8121973501. The cubic root of 27256880 is about 300.9484060014.

The spelling of 27256880 in words is "twenty-seven million, two hundred fifty-six thousand, eight hundred eighty".