27090128 has 20 divisors (see below), whose sum is σ = 56525028. Its totient is φ = 12503040.

The previous prime is 27090109. The next prime is 27090131. The reversal of 27090128 is 82109072.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9684544 + 17405584 = 3112^2 + 4172^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 27090128.

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, 64913 + ... + 65328.

Almost surely, 2^27090128 is an apocalyptic number.

It is an amenable number.

27090128 is an abundant number, since it is smaller than the sum of its proper divisors (29434900).

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

27090128 is a wasteful number, since it uses less digits than its factorization.

27090128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130262 (or 130256 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 27090128 is about 5204.8177681836. The cubic root of 27090128 is about 300.3334366701. Note that the first 3 decimals are identical.

The spelling of 27090128 in words is "twenty-seven million, ninety thousand, one hundred twenty-eight".