27042081 has 8 divisors (see below), whose sum is σ = 39333984. Its totient is φ = 16389120.

The previous prime is 27042077. The next prime is 27042091. The reversal of 27042081 is 18024072.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 27042081 - 2² = 27042077 is a prime.

It is a super-2 number, since 2×27042081² = 1462548289621122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27042091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 409696 + ... + 409761.

It is an arithmetic number, because the mean of its divisors is an integer number (4916748).

Almost surely, 2^27042081 is an apocalyptic number.

It is an amenable number.

27042081 is a deficient number, since it is larger than the sum of its proper divisors (12291903).

27042081 is a wasteful number, since it uses less digits than its factorization.

27042081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819471.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 27042081 is about 5200.2000923041. The cubic root of 27042081 is about 300.1557746557.

Subtracting from 27042081 its reverse (18024072), we obtain a square (9018009 = 3003²).

The spelling of 27042081 in words is "twenty-seven million, forty-two thousand, eighty-one".