20304236304 has 280 divisors, whose sum is σ = 67738893600. Its totient is φ = 5828267520.

The previous prime is 20304236207. The next prime is 20304236311. The reversal of 20304236304 is 40363240302.

It is a happy number.

20304236304 is a `hidden beast` number, since 2 + 0 + 3 + 0 + 4 + 23 + 630 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 2433612 + ... + 2441940.

It is an arithmetic number, because the mean of its divisors is an integer number (241924620).

Almost surely, 2^20304236304 is an apocalyptic number.

20304236304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20304236304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33869446800).

20304236304 is an abundant number, since it is smaller than the sum of its proper divisors (47434657296).

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

20304236304 is a wasteful number, since it uses less digits than its factorization.

20304236304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8385 (or 8364 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 20304236304 its reverse (40363240302), we get a palindrome (60667476606).

The spelling of 20304236304 in words is "twenty billion, three hundred four million, two hundred thirty-six thousand, three hundred four".