20424104200 has 24 divisors (see below), whose sum is σ = 47486042730. Its totient is φ = 8169641600.

The previous prime is 20424104189. The next prime is 20424104209. The reversal of 20424104200 is 240142402.

It can be written as a sum of positive squares in 3 ways, for example, as 18530287876 + 1893816324 = 136126^2 + 43518^2 .

It is not an unprimeable number, because it can be changed into a prime (20424104209) 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, 51060061 + ... + 51060460.

Almost surely, 2^20424104200 is an apocalyptic number.

20424104200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20424104200 is an abundant number, since it is smaller than the sum of its proper divisors (27061938530).

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

20424104200 is a wasteful number, since it uses less digits than its factorization.

20424104200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102120537 (or 102120528 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 20424104200 its reverse (240142402), we get a palindrome (20664246602).

The spelling of 20424104200 in words is "twenty billion, four hundred twenty-four million, one hundred four thousand, two hundred".