27942057 has 32 divisors (see below), whose sum is σ = 48639360. Its totient is φ = 15629760.

The previous prime is 27942053. The next prime is 27942071. The reversal of 27942057 is 75024972.

It is not a de Polignac number, because 27942057 - 2² = 27942053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27942053) 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 31 ways as a sum of consecutive naturals, for example, 243 + ... + 7479.

It is an arithmetic number, because the mean of its divisors is an integer number (1519980).

Almost surely, 2^27942057 is an apocalyptic number.

27942057 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

27942057 is a deficient number, since it is larger than the sum of its proper divisors (20697303).

27942057 is a wasteful number, since it uses less digits than its factorization.

27942057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7270 (or 7264 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 27942057 is about 5286.0246877971. The cubic root of 27942057 is about 303.4492893497.

It can be divided in two parts, 2794 and 2057, that added together give a triangular number (4851 = T₉₈).

The spelling of 27942057 in words is "twenty-seven million, nine hundred forty-two thousand, fifty-seven".