27444142 has 16 divisors (see below), whose sum is σ = 45757872. Its totient is φ = 12238720.

The previous prime is 27444139. The next prime is 27444143. The reversal of 27444142 is 24144472.

It is a self number, because there is not a number n which added to its sum of digits gives 27444142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27444143) 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 7 ways as a sum of consecutive naturals, for example, 10603 + ... + 12934.

It is an arithmetic number, because the mean of its divisors is an integer number (2859867).

Almost surely, 2^27444142 is an apocalyptic number.

27444142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

27444142 is a deficient number, since it is larger than the sum of its proper divisors (18313730).

27444142 is a wasteful number, since it uses less digits than its factorization.

27444142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23603.

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

The square root of 27444142 is about 5238.7156823023. The cubic root of 27444142 is about 301.6360321479.

It can be divided in two parts, 2744 and 4142, that added together give a palindrome (6886).

The spelling of 27444142 in words is "twenty-seven million, four hundred forty-four thousand, one hundred forty-two".