27381738 has 8 divisors (see below), whose sum is σ = 54763488. Its totient is φ = 9127244.

The previous prime is 27381737. The next prime is 27381743. The reversal of 27381738 is 83718372.

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

27381738 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 27381696 and 27381705.

It is not an unprimeable number, because it can be changed into a prime (27381733) 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, 2281806 + ... + 2281817.

It is an arithmetic number, because the mean of its divisors is an integer number (6845436).

Almost surely, 2^27381738 is an apocalyptic number.

27381738 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.

27381738 is a wasteful number, since it uses less digits than its factorization.

27381738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4563628.

The product of its digits is 56448, while the sum is 39.

The square root of 27381738 is about 5232.7562526837. The cubic root of 27381738 is about 301.4072331064.

The spelling of 27381738 in words is "twenty-seven million, three hundred eighty-one thousand, seven hundred thirty-eight".