20330232 has 64 divisors (see below), whose sum is σ = 57970080. Its totient is φ = 5885952.

The previous prime is 20330207. The next prime is 20330237. The reversal of 20330232 is 23203302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20330237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3388 + ... + 7220.

Almost surely, 2^20330232 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 20330232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28985040).

20330232 is an abundant number, since it is smaller than the sum of its proper divisors (37639848).

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

20330232 is a wasteful number, since it uses less digits than its factorization.

20330232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3872 (or 3868 counting only the distinct ones).

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

The square root of 20330232 is about 4508.9058539739. The cubic root of 20330232 is about 272.9275928678.

Adding to 20330232 its reverse (23203302), we get a palindrome (43533534).

The spelling of 20330232 in words is "twenty million, three hundred thirty thousand, two hundred thirty-two".