20132432 has 20 divisors (see below), whose sum is σ = 39208800. Its totient is φ = 10014048.

The previous prime is 20132407. The next prime is 20132443. The reversal of 20132432 is 23423102.

It is a self number, because there is not a number n which added to its sum of digits gives 20132432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23 + ... + 6345.

It is an arithmetic number, because the mean of its divisors is an integer number (1960440).

Almost surely, 2^20132432 is an apocalyptic number.

It is an amenable number.

20132432 is a deficient number, since it is larger than the sum of its proper divisors (19076368).

20132432 is a wasteful number, since it uses less digits than its factorization.

20132432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6530 (or 6524 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 20132432 is about 4486.9178731062. The cubic root of 20132432 is about 272.0395703676.

Adding to 20132432 its reverse (23423102), we get a palindrome (43555534).

The spelling of 20132432 in words is "twenty million, one hundred thirty-two thousand, four hundred thirty-two".