20132128 has 24 divisors (see below), whose sum is σ = 40033980. Its totient is φ = 9964800.

The previous prime is 20132117. The next prime is 20132129. The reversal of 20132128 is 82123102.

It can be written as a sum of positive squares in 2 ways, for example, as 18421264 + 1710864 = 4292^2 + 1308^2 .

It is not an unprimeable number, because it can be changed into a prime (20132129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118 + ... + 6346.

Almost surely, 2^20132128 is an apocalyptic number.

It is an amenable number.

20132128 is a deficient number, since it is larger than the sum of its proper divisors (19901852).

20132128 is a wasteful number, since it uses less digits than its factorization.

20132128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6340 (or 6332 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 20132128 is about 4486.8839967175. The cubic root of 20132128 is about 272.0382010936.

The spelling of 20132128 in words is "twenty million, one hundred thirty-two thousand, one hundred twenty-eight".