20330030 has 16 divisors (see below), whose sum is σ = 41821920. Its totient is φ = 6970272.

The previous prime is 20329993. The next prime is 20330047. The reversal of 20330030 is 3003302.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20329993 and 20330020.

It is a congruent number.

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, 145145 + ... + 145284.

It is an arithmetic number, because the mean of its divisors is an integer number (2613870).

Almost surely, 2^20330030 is an apocalyptic number.

20330030 is an abundant number, since it is smaller than the sum of its proper divisors (21491890).

20330030 is a wasteful number, since it uses less digits than its factorization.

20330030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290443.

The product of its (nonzero) digits is 54, while the sum is 11.

The square root of 20330030 is about 4508.8834538054. The cubic root of 20330030 is about 272.9266889339.

Adding to 20330030 its reverse (3003302), we get a palindrome (23333332).

The spelling of 20330030 in words is "twenty million, three hundred thirty thousand, thirty".