27890132 has 12 divisors (see below), whose sum is σ = 51678900. Its totient is φ = 13124736.

The previous prime is 27890123. The next prime is 27890143. The reversal of 27890132 is 23109872.

It can be written as a sum of positive squares in 2 ways, for example, as 16289296 + 11600836 = 4036^2 + 3406^2 .

It is a congruent number.

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, 205007 + ... + 205142.

It is an arithmetic number, because the mean of its divisors is an integer number (4306575).

Almost surely, 2^27890132 is an apocalyptic number.

It is an amenable number.

27890132 is a deficient number, since it is larger than the sum of its proper divisors (23788768).

27890132 is a wasteful number, since it uses less digits than its factorization.

27890132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410170 (or 410168 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 27890132 is about 5281.1108679898. The cubic root of 27890132 is about 303.2612051933.

The spelling of 27890132 in words is "twenty-seven million, eight hundred ninety thousand, one hundred thirty-two".