27042449 has 16 divisors (see below), whose sum is σ = 31941888. Its totient is φ = 22410432.

The previous prime is 27042419. The next prime is 27042467. The reversal of 27042449 is 94424072.

It is a cyclic number.

It is not a de Polignac number, because 27042449 - 2²⁰ = 25993873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27042419) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 67919 + ... + 68315.

It is an arithmetic number, because the mean of its divisors is an integer number (1996368).

Almost surely, 2^27042449 is an apocalyptic number.

It is an amenable number.

27042449 is a deficient number, since it is larger than the sum of its proper divisors (4899439).

27042449 is a wasteful number, since it uses less digits than its factorization.

27042449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 27042449 is about 5200.2354754376. The cubic root of 27042449 is about 300.1571361982.

The spelling of 27042449 in words is "twenty-seven million, forty-two thousand, four hundred forty-nine".