27440066 has 16 divisors (see below), whose sum is σ = 43472160. Its totient is φ = 12954240.

The previous prime is 27440059. The next prime is 27440069. The reversal of 27440066 is 66004472.

It is not an unprimeable number, because it can be changed into a prime (27440069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12146 + ... + 14226.

It is an arithmetic number, because the mean of its divisors is an integer number (2717010).

Almost surely, 2^27440066 is an apocalyptic number.

27440066 is a deficient number, since it is larger than the sum of its proper divisors (16032094).

27440066 is a wasteful number, since it uses less digits than its factorization.

27440066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2449.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 27440066 is about 5238.3266412090. The cubic root of 27440066 is about 301.6210984286.

The spelling of 27440066 in words is "twenty-seven million, four hundred forty thousand, sixty-six".