27666442 has 8 divisors (see below), whose sum is σ = 41826816. Its totient is φ = 13724172.

The previous prime is 27666439. The next prime is 27666449. The reversal of 27666442 is 24466672.

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

It is not an unprimeable number, because it can be changed into a prime (27666449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54208 + ... + 54715.

It is an arithmetic number, because the mean of its divisors is an integer number (5228352).

Almost surely, 2^27666442 is an apocalyptic number.

27666442 is a deficient number, since it is larger than the sum of its proper divisors (14160374).

27666442 is a wasteful number, since it uses less digits than its factorization.

27666442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109052.

The product of its digits is 96768, while the sum is 37.

The square root of 27666442 is about 5259.8899228026. The cubic root of 27666442 is about 302.4482692771.

The spelling of 27666442 in words is "twenty-seven million, six hundred sixty-six thousand, four hundred forty-two".