27128268 has 36 divisors (see below), whose sum is σ = 69352920. Its totient is φ = 8940096.

The previous prime is 27128267. The next prime is 27128287. The reversal of 27128268 is 86282172.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (27128261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1030 + ... + 7437.

It is an arithmetic number, because the mean of its divisors is an integer number (1926470).

Almost surely, 2^27128268 is an apocalyptic number.

It is an amenable number.

27128268 is an abundant number, since it is smaller than the sum of its proper divisors (42224652).

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

27128268 is a wasteful number, since it uses less digits than its factorization.

27128268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8566 (or 8561 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 27128268 is about 5208.4803925905. The cubic root of 27128268 is about 300.4743163514.

The spelling of 27128268 in words is "twenty-seven million, one hundred twenty-eight thousand, two hundred sixty-eight".