27131392 has 40 divisors (see below), whose sum is σ = 57083400. Its totient is φ = 12847104.

The previous prime is 27131387. The next prime is 27131437. The reversal of 27131392 is 29313172.

It is a super-2 number, since 2×27131392² = 1472224863715328, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27131392.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 8334 + ... + 11122.

It is an arithmetic number, because the mean of its divisors is an integer number (1427085).

Almost surely, 2^27131392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27131392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28541700).

27131392 is an abundant number, since it is smaller than the sum of its proper divisors (29952008).

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

27131392 is an equidigital number, since it uses as much as digits as its factorization.

27131392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2826 (or 2810 counting only the distinct ones).

The product of its digits is 2268, while the sum is 28.

The square root of 27131392 is about 5208.7802794896. The cubic root of 27131392 is about 300.4858497789.

The spelling of 27131392 in words is "twenty-seven million, one hundred thirty-one thousand, three hundred ninety-two".