27042842 has 4 divisors (see below), whose sum is σ = 40564266. Its totient is φ = 13521420.

The previous prime is 27042823. The next prime is 27042853. The reversal of 27042842 is 24824072.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 26739241 + 303601 = 5171^2 + 551^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6760709 + ... + 6760712.

Almost surely, 2^27042842 is an apocalyptic number.

27042842 is a deficient number, since it is larger than the sum of its proper divisors (13521424).

27042842 is a wasteful number, since it uses less digits than its factorization.

27042842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13521423.

The product of its (nonzero) digits is 7168, while the sum is 29.

The square root of 27042842 is about 5200.2732620508. The cubic root of 27042842 is about 300.1585902231.

The spelling of 27042842 in words is "twenty-seven million, forty-two thousand, eight hundred forty-two".