20430245200 has 30 divisors (see below), whose sum is σ = 49083665054. Its totient is φ = 8172097920.

The previous prime is 20430245179. The next prime is 20430245207. The reversal of 20430245200 is 254203402.

It can be written as a sum of positive squares in 3 ways, for example, as 1749916224 + 18680328976 = 41832^2 + 136676^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20430245207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25537407 + ... + 25538206.

Almost surely, 2^20430245200 is an apocalyptic number.

20430245200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20430245200 is an abundant number, since it is smaller than the sum of its proper divisors (28653419854).

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

20430245200 is a wasteful number, since it uses less digits than its factorization.

20430245200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51075631 (or 51075620 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

Adding to 20430245200 its reverse (254203402), we get a palindrome (20684448602).

The spelling of 20430245200 in words is "twenty billion, four hundred thirty million, two hundred forty-five thousand, two hundred".