27881232 has 20 divisors (see below), whose sum is σ = 72026640. Its totient is φ = 9293728.

The previous prime is 27881201. The next prime is 27881257. The reversal of 27881232 is 23218872.

It is a junction number, because it is equal to n+sod(n) for n = 27881193 and 27881202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290382 + ... + 290477.

It is an arithmetic number, because the mean of its divisors is an integer number (3601332).

Almost surely, 2^27881232 is an apocalyptic number.

It is an amenable number.

27881232 is an abundant number, since it is smaller than the sum of its proper divisors (44145408).

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

27881232 is a wasteful number, since it uses less digits than its factorization.

27881232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580870 (or 580864 counting only the distinct ones).

The product of its digits is 10752, while the sum is 33.

The square root of 27881232 is about 5280.2681750078. The cubic root of 27881232 is about 303.2289439397.

The spelling of 27881232 in words is "twenty-seven million, eight hundred eighty-one thousand, two hundred thirty-two".