20532128 has 24 divisors (see below), whose sum is σ = 40640292. Its totient is φ = 10210816.

The previous prime is 20532121. The next prime is 20532133. The reversal of 20532128 is 82123502.

It can be written as a sum of positive squares in 2 ways, for example, as 15460624 + 5071504 = 3932^2 + 2252^2 .

It is not an unprimeable number, because it can be changed into a prime (20532121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4676 + ... + 7932.

Almost surely, 2^20532128 is an apocalyptic number.

It is an amenable number.

20532128 is a deficient number, since it is larger than the sum of its proper divisors (20108164).

20532128 is a wasteful number, since it uses less digits than its factorization.

20532128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3464 (or 3456 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 20532128 is about 4531.2391241249. The cubic root of 20532128 is about 273.8280840339.

The spelling of 20532128 in words is "twenty million, five hundred thirty-two thousand, one hundred twenty-eight".