27856042 has 16 divisors (see below), whose sum is σ = 44301312. Its totient is φ = 13113360.

The previous prime is 27855991. The next prime is 27856099. The reversal of 27856042 is 24065872.

It is a junction number, because it is equal to n+sod(n) for n = 27855989 and 27856007.

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 in 7 ways as a sum of consecutive naturals, for example, 3778 + ... + 8365.

It is an arithmetic number, because the mean of its divisors is an integer number (2768832).

Almost surely, 2^27856042 is an apocalyptic number.

27856042 is a deficient number, since it is larger than the sum of its proper divisors (16445270).

27856042 is a wasteful number, since it uses less digits than its factorization.

27856042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12213.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 27856042 is about 5277.8823404847. The cubic root of 27856042 is about 303.1375964865.

The spelling of 27856042 in words is "twenty-seven million, eight hundred fifty-six thousand, forty-two".