20304023200 has 72 divisors (see below), whose sum is σ = 52176035520. Its totient is φ = 7694150400.

The previous prime is 20304023197. The next prime is 20304023227. The reversal of 20304023200 is 232040302.

It is a super-2 number, since 2×20304023200² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 652696 + ... + 683095.

It is an arithmetic number, because the mean of its divisors is an integer number (724667160).

Almost surely, 2^20304023200 is an apocalyptic number.

20304023200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20304023200 is an abundant number, since it is smaller than the sum of its proper divisors (31872012320).

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

20304023200 is a wasteful number, since it uses less digits than its factorization.

20304023200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335830 (or 1335817 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

Adding to 20304023200 its reverse (232040302), we get a palindrome (20536063502).

The spelling of 20304023200 in words is "twenty billion, three hundred four million, twenty-three thousand, two hundred".