27047242 has 12 divisors (see below), whose sum is σ = 40901490. Its totient is φ = 13414248.

The previous prime is 27047233. The next prime is 27047243. The reversal of 27047242 is 24274072.

It can be written as a sum of positive squares in only one way, i.e., 19368801 + 7678441 = 4401^2 + 2771^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 27047242.

It is not an unprimeable number, because it can be changed into a prime (27047243) 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 5 ways as a sum of consecutive naturals, for example, 52884 + ... + 53392.

Almost surely, 2^27047242 is an apocalyptic number.

27047242 is a deficient number, since it is larger than the sum of its proper divisors (13854248).

27047242 is an equidigital number, since it uses as much as digits as its factorization.

27047242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837 (or 674 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 28.

The square root of 27047242 is about 5200.6962995353. The cubic root of 27047242 is about 300.1748684207.

The spelling of 27047242 in words is "twenty-seven million, forty-seven thousand, two hundred forty-two".