20330132 has 12 divisors (see below), whose sum is σ = 36335040. Its totient is φ = 9948696.

The previous prime is 20330129. The next prime is 20330143. The reversal of 20330132 is 23103302.

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, 53882 + ... + 54257.

It is an arithmetic number, because the mean of its divisors is an integer number (3027920).

Almost surely, 2^20330132 is an apocalyptic number.

It is an amenable number.

20330132 is a deficient number, since it is larger than the sum of its proper divisors (16004908).

20330132 is a wasteful number, since it uses less digits than its factorization.

20330132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108190 (or 108188 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 20330132 is about 4508.8947647955. The cubic root of 20330132 is about 272.9271453765.

Adding to 20330132 its reverse (23103302), we get a palindrome (43433434).

The spelling of 20330132 in words is "twenty million, three hundred thirty thousand, one hundred thirty-two".