27730238 has 8 divisors (see below), whose sum is σ = 41646360. Its totient is φ = 13848120.

The previous prime is 27730231. The next prime is 27730243. The reversal of 27730238 is 83203772.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27730231) 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, 6353 + ... + 9788.

It is an arithmetic number, because the mean of its divisors is an integer number (5205795).

Almost surely, 2^27730238 is an apocalyptic number.

27730238 is a deficient number, since it is larger than the sum of its proper divisors (13916122).

27730238 is a wasteful number, since it uses less digits than its factorization.

27730238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17002.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 27730238 is about 5265.9508163294. The cubic root of 27730238 is about 302.6805624646.

The spelling of 27730238 in words is "twenty-seven million, seven hundred thirty thousand, two hundred thirty-eight".