20332032 has 160 divisors (see below), whose sum is σ = 64948224. Its totient is φ = 5529600.

The previous prime is 20331989. The next prime is 20332043. The reversal of 20332032 is 23023302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 333282 + ... + 333342.

It is a self-describing number.

Almost surely, 2^20332032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20332032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32474112).

20332032 is an abundant number, since it is smaller than the sum of its proper divisors (44616192).

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

20332032 is an equidigital number, since it uses as much as digits as its factorization.

20332032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 15.

The square root of 20332032 is about 4509.1054545220. The cubic root of 20332032 is about 272.9356474598.

Adding to 20332032 its reverse (23023302), we get a palindrome (43355334).

The spelling of 20332032 in words is "twenty million, three hundred thirty-two thousand, thirty-two".