20323330 has 16 divisors (see below), whose sum is σ = 38734200. Its totient is φ = 7651072.

The previous prime is 20323291. The next prime is 20323333. The reversal of 20323330 is 3332302.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 18861649 + 1461681 = 4343^2 + 1209^2 .

It is not an unprimeable number, because it can be changed into a prime (20323333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59605 + ... + 59944.

Almost surely, 2^20323330 is an apocalyptic number.

20323330 is a deficient number, since it is larger than the sum of its proper divisors (18410870).

20323330 is a wasteful number, since it uses less digits than its factorization.

20323330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119573.

The product of its (nonzero) digits is 324, while the sum is 16.

The square root of 20323330 is about 4508.1404148496. The cubic root of 20323330 is about 272.8967035751.

Adding to 20323330 its reverse (3332302), we get a palindrome (23655632).

The spelling of 20323330 in words is "twenty million, three hundred twenty-three thousand, three hundred thirty".