27840256 has 18 divisors (see below), whose sum is σ = 55572272. Its totient is φ = 13920000.

The previous prime is 27840233. The next prime is 27840257. The reversal of 27840256 is 65204872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27840257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54120 + ... + 54631.

Almost surely, 2^27840256 is an apocalyptic number.

It is an amenable number.

27840256 is a deficient number, since it is larger than the sum of its proper divisors (27732016).

27840256 is an equidigital number, since it uses as much as digits as its factorization.

27840256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108767 (or 108753 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 27840256 is about 5276.3866423908. The cubic root of 27840256 is about 303.0803230431.

The spelling of 27840256 in words is "twenty-seven million, eight hundred forty thousand, two hundred fifty-six".