20432532 has 12 divisors (see below), whose sum is σ = 47675936. Its totient is φ = 6810840.

The previous prime is 20432527. The next prime is 20432551. The reversal of 20432532 is 23523402.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 20432499 and 20432508.

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, 851344 + ... + 851367.

Almost surely, 2^20432532 is an apocalyptic number.

It is an amenable number.

20432532 is an abundant number, since it is smaller than the sum of its proper divisors (27243404).

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

20432532 is a wasteful number, since it uses less digits than its factorization.

20432532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702718 (or 1702716 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 20432532 is about 4520.2358345555. The cubic root of 20432532 is about 273.3846099848.

Adding to 20432532 its reverse (23523402), we get a palindrome (43955934).

The spelling of 20432532 in words is "twenty million, four hundred thirty-two thousand, five hundred thirty-two".