27442065 has 16 divisors (see below), whose sum is σ = 50179968. Its totient is φ = 12544896.

The previous prime is 27442057. The next prime is 27442067. The reversal of 27442065 is 56024472.

It is not a de Polignac number, because 27442065 - 2³ = 27442057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27442067) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 130572 + ... + 130781.

It is an arithmetic number, because the mean of its divisors is an integer number (3136248).

Almost surely, 2^27442065 is an apocalyptic number.

It is an amenable number.

27442065 is a deficient number, since it is larger than the sum of its proper divisors (22737903).

27442065 is a wasteful number, since it uses less digits than its factorization.

27442065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261368.

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 27442065 is about 5238.5174429413. The cubic root of 27442065 is about 301.6284225841.

The spelling of 27442065 in words is "twenty-seven million, four hundred forty-two thousand, sixty-five".