20530632 has 32 divisors (see below), whose sum is σ = 51861600. Its totient is φ = 6772224.

The previous prime is 20530619. The next prime is 20530669. The reversal of 20530632 is 23603502.

It is a junction number, because it is equal to n+sod(n) for n = 20530599 and 20530608.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2082 + ... + 6737.

It is an arithmetic number, because the mean of its divisors is an integer number (1620675).

Almost surely, 2^20530632 is an apocalyptic number.

It is an amenable number.

20530632 is an abundant number, since it is smaller than the sum of its proper divisors (31330968).

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

20530632 is a wasteful number, since it uses less digits than its factorization.

20530632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8925 (or 8921 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 20530632 is about 4531.0740448596. The cubic root of 20530632 is about 273.8214333714.

The spelling of 20530632 in words is "twenty million, five hundred thirty thousand, six hundred thirty-two".