27242538 has 8 divisors (see below), whose sum is σ = 54485088. Its totient is φ = 9080844.

The previous prime is 27242533. The next prime is 27242549. The reversal of 27242538 is 83524272.

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

27242538 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 27242499 and 27242508.

It is not an unprimeable number, because it can be changed into a prime (27242531) 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 3 ways as a sum of consecutive naturals, for example, 2270206 + ... + 2270217.

It is an arithmetic number, because the mean of its divisors is an integer number (6810636).

Almost surely, 2^27242538 is an apocalyptic number.

27242538 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27242538 is a wasteful number, since it uses less digits than its factorization.

27242538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4540428.

The product of its digits is 26880, while the sum is 33.

The square root of 27242538 is about 5219.4384755450. The cubic root of 27242538 is about 300.8956124891.

The spelling of 27242538 in words is "twenty-seven million, two hundred forty-two thousand, five hundred thirty-eight".