27840064 has 28 divisors (see below), whose sum is σ = 63138304. Its totient is φ = 11931264.

The previous prime is 27840061. The next prime is 27840089. The reversal of 27840064 is 46004872.

It is a tau number, because it is divible by the number of its divisors (28).

It is not an unprimeable number, because it can be changed into a prime (27840061) 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, 30624 + ... + 31519.

Almost surely, 2^27840064 is an apocalyptic number.

It is an amenable number.

27840064 is an abundant number, since it is smaller than the sum of its proper divisors (35298240).

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

27840064 is an equidigital number, since it uses as much as digits as its factorization.

27840064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62162 (or 62152 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 27840064 is about 5276.3684480900. The cubic root of 27840064 is about 303.0796263116.

The spelling of 27840064 in words is "twenty-seven million, eight hundred forty thousand, sixty-four".