20326304 has 12 divisors (see below), whose sum is σ = 40017474. Its totient is φ = 10163136.

The previous prime is 20326291. The next prime is 20326307. The reversal of 20326304 is 40362302.

It can be written as a sum of positive squares in only one way, i.e., 11916304 + 8410000 = 3452^2 + 2900^2 .

It is not an unprimeable number, because it can be changed into a prime (20326307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317567 + ... + 317630.

Almost surely, 2^20326304 is an apocalyptic number.

It is an amenable number.

20326304 is a deficient number, since it is larger than the sum of its proper divisors (19691170).

20326304 is an equidigital number, since it uses as much as digits as its factorization.

20326304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635207 (or 635199 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 20326304 is about 4508.4702505395. The cubic root of 20326304 is about 272.9100143074.

Adding to 20326304 its reverse (40362302), we get a palindrome (60688606).

The spelling of 20326304 in words is "twenty million, three hundred twenty-six thousand, three hundred four".