27381016 has 48 divisors (see below), whose sum is σ = 58796640. Its totient is φ = 11880960.

The previous prime is 27380993. The next prime is 27381031. The reversal of 27381016 is 61018372.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29601 + ... + 30511.

It is an arithmetic number, because the mean of its divisors is an integer number (1224930).

Almost surely, 2^27381016 is an apocalyptic number.

27381016 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27381016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29398320).

27381016 is an abundant number, since it is smaller than the sum of its proper divisors (31415624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27381016 is a wasteful number, since it uses less digits than its factorization.

27381016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964 (or 943 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 27381016 is about 5232.6872637298. The cubic root of 27381016 is about 301.4045839206.

Adding to 27381016 its reverse (61018372), we get a palindrome (88399388).

The spelling of 27381016 in words is "twenty-seven million, three hundred eighty-one thousand, sixteen".