28127204 has 24 divisors (see below), whose sum is σ = 56891520. Its totient is φ = 11918016.

The previous prime is 28127191. The next prime is 28127207. The reversal of 28127204 is 40272182.

It is a super-2 number, since 2×28127204² = 1582279209715232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28127207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3152 + ... + 8135.

It is an arithmetic number, because the mean of its divisors is an integer number (2370480).

Almost surely, 2^28127204 is an apocalyptic number.

It is an amenable number.

28127204 is an abundant number, since it is smaller than the sum of its proper divisors (28764316).

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

28127204 is a wasteful number, since it uses less digits than its factorization.

28127204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11387 (or 11385 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 28127204 is about 5303.5086499411. The cubic root of 28127204 is about 304.1180433775.

Adding to 28127204 its reverse (40272182), we get a palindrome (68399386).

The spelling of 28127204 in words is "twenty-eight million, one hundred twenty-seven thousand, two hundred four".