27442144 has 12 divisors (see below), whose sum is σ = 54026784. Its totient is φ = 13721056.

The previous prime is 27442141. The next prime is 27442169. The reversal of 27442144 is 44124472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27442141) 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 as a sum of consecutive naturals, namely, 428752 + ... + 428815.

It is an arithmetic number, because the mean of its divisors is an integer number (4502232).

Almost surely, 2^27442144 is an apocalyptic number.

It is an amenable number.

27442144 is a deficient number, since it is larger than the sum of its proper divisors (26584640).

27442144 is an equidigital number, since it uses as much as digits as its factorization.

27442144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857577 (or 857569 counting only the distinct ones).

The product of its digits is 7168, while the sum is 28.

The square root of 27442144 is about 5238.5249832372. The cubic root of 27442144 is about 301.6287120257.

The spelling of 27442144 in words is "twenty-seven million, four hundred forty-two thousand, one hundred forty-four".