27881282 has 24 divisors (see below), whose sum is σ = 49410000. Its totient is φ = 11696880.

The previous prime is 27881279. The next prime is 27881291. The reversal of 27881282 is 28218872.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 32 + ... + 7467.

It is an arithmetic number, because the mean of its divisors is an integer number (2058750).

Almost surely, 2^27881282 is an apocalyptic number.

27881282 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

27881282 is a deficient number, since it is larger than the sum of its proper divisors (21528718).

27881282 is a wasteful number, since it uses less digits than its factorization.

27881282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7538 (or 7525 counting only the distinct ones).

The product of its digits is 28672, while the sum is 38.

The square root of 27881282 is about 5280.2729096137. The cubic root of 27881282 is about 303.2291252018.

The spelling of 27881282 in words is "twenty-seven million, eight hundred eighty-one thousand, two hundred eighty-two".