20330632 has 16 divisors (see below), whose sum is σ = 43565760. Its totient is φ = 8713104.

The previous prime is 20330591. The next prime is 20330647. The reversal of 20330632 is 23603302.

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, 181468 + ... + 181579.

It is an arithmetic number, because the mean of its divisors is an integer number (2722860).

Almost surely, 2^20330632 is an apocalyptic number.

It is an amenable number.

20330632 is an abundant number, since it is smaller than the sum of its proper divisors (23235128).

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

20330632 is a wasteful number, since it uses less digits than its factorization.

20330632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363060 (or 363056 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 20330632 is about 4508.9502104148. The cubic root of 20330632 is about 272.9293828182.

Adding to 20330632 its reverse (23603302), we get a palindrome (43933934).

The spelling of 20330632 in words is "twenty million, three hundred thirty thousand, six hundred thirty-two".