20163432 has 32 divisors (see below), whose sum is σ = 51122880. Its totient is φ = 6625920.

The previous prime is 20163397. The next prime is 20163443. The reversal of 20163432 is 23436102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20163399 and 20163408.

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 7 ways as a sum of consecutive naturals, for example, 4213 + ... + 7620.

It is an arithmetic number, because the mean of its divisors is an integer number (1597590).

Almost surely, 2^20163432 is an apocalyptic number.

It is an amenable number.

20163432 is an abundant number, since it is smaller than the sum of its proper divisors (30959448).

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

20163432 is a wasteful number, since it uses less digits than its factorization.

20163432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11913 (or 11909 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 20163432 is about 4490.3710314405. The cubic root of 20163432 is about 272.1791279709.

Adding to 20163432 its reverse (23436102), we get a palindrome (43599534).

The spelling of 20163432 in words is "twenty million, one hundred sixty-three thousand, four hundred thirty-two".