27142443 has 12 divisors (see below), whose sum is σ = 39611208. Its totient is φ = 17907840.

The previous prime is 27142441. The next prime is 27142459. The reversal of 27142443 is 34424172.

It is not a de Polignac number, because 27142443 - 2¹ = 27142441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27142441) 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 11 ways as a sum of consecutive naturals, for example, 14673 + ... + 16418.

It is an arithmetic number, because the mean of its divisors is an integer number (3300934).

Almost surely, 2^27142443 is an apocalyptic number.

27142443 is a deficient number, since it is larger than the sum of its proper divisors (12468765).

27142443 is a wasteful number, since it uses less digits than its factorization.

27142443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31194 (or 31191 counting only the distinct ones).

The product of its digits is 5376, while the sum is 27.

The square root of 27142443 is about 5209.8409764598. The cubic root of 27142443 is about 300.5266416210.

The spelling of 27142443 in words is "twenty-seven million, one hundred forty-two thousand, four hundred forty-three".