20832128 has 16 divisors (see below), whose sum is σ = 41501760. Its totient is φ = 10416000.

The previous prime is 20832107. The next prime is 20832131. The reversal of 20832128 is 82123802.

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 20832097 and 20832106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81248 + ... + 81503.

It is an arithmetic number, because the mean of its divisors is an integer number (2593860).

Almost surely, 2^20832128 is an apocalyptic number.

It is an amenable number.

20832128 is a deficient number, since it is larger than the sum of its proper divisors (20669632).

20832128 is an equidigital number, since it uses as much as digits as its factorization.

20832128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162765 (or 162753 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 20832128 is about 4564.2226063153. Note that the first 3 decimals coincide. The cubic root of 20832128 is about 275.1552974082.

The spelling of 20832128 in words is "twenty million, eight hundred thirty-two thousand, one hundred twenty-eight".