20323304 has 8 divisors (see below), whose sum is σ = 38106210. Its totient is φ = 10161648.

The previous prime is 20323291. The next prime is 20323333. The reversal of 20323304 is 40332302.

It can be written as a sum of positive squares in only one way, i.e., 16826404 + 3496900 = 4102^2 + 1870^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 1270199 + ... + 1270214.

Almost surely, 2^20323304 is an apocalyptic number.

It is an amenable number.

20323304 is a deficient number, since it is larger than the sum of its proper divisors (17782906).

20323304 is a wasteful number, since it uses less digits than its factorization.

20323304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2540419 (or 2540415 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 20323304 is about 4508.1375311763. The cubic root of 20323304 is about 272.8965872012.

Adding to 20323304 its reverse (40332302), we get a palindrome (60655606).

The spelling of 20323304 in words is "twenty million, three hundred twenty-three thousand, three hundred four".