20632732 has 12 divisors (see below), whose sum is σ = 37272256. Its totient is φ = 9983520.

The previous prime is 20632709. The next prime is 20632751. The reversal of 20632732 is 23723602.

It is a junction number, because it is equal to n+sod(n) for n = 20632697 and 20632706.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83073 + ... + 83320.

Almost surely, 2^20632732 is an apocalyptic number.

It is an amenable number.

20632732 is a deficient number, since it is larger than the sum of its proper divisors (16639524).

20632732 is a wasteful number, since it uses less digits than its factorization.

20632732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166428 (or 166426 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 20632732 is about 4542.3267165628. The cubic root of 20632732 is about 274.2745928547.

The spelling of 20632732 in words is "twenty million, six hundred thirty-two thousand, seven hundred thirty-two".