27681230 has 8 divisors (see below), whose sum is σ = 49826232. Its totient is φ = 11072488.

The previous prime is 27681223. The next prime is 27681239. The reversal of 27681230 is 3218672.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 27681193 and 27681202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27681239) 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, 1384052 + ... + 1384071.

It is an arithmetic number, because the mean of its divisors is an integer number (6228279).

Almost surely, 2^27681230 is an apocalyptic number.

27681230 is a deficient number, since it is larger than the sum of its proper divisors (22145002).

27681230 is a wasteful number, since it uses less digits than its factorization.

27681230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2768130.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 27681230 is about 5261.2954678482. The cubic root of 27681230 is about 302.5021469237.

The spelling of 27681230 in words is "twenty-seven million, six hundred eighty-one thousand, two hundred thirty".