20404224200 has 48 divisors (see below), whose sum is σ = 47451390000. Its totient is φ = 8159699520.

The previous prime is 20404224187. The next prime is 20404224221. The reversal of 20404224200 is 242240402.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1025951 + ... + 1045649.

It is an arithmetic number, because the mean of its divisors is an integer number (988570625).

Almost surely, 2^20404224200 is an apocalyptic number.

20404224200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20404224200 is an abundant number, since it is smaller than the sum of its proper divisors (27047165800).

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

20404224200 is a wasteful number, since it uses less digits than its factorization.

20404224200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24894 (or 24885 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 20404224200 its reverse (242240402), we get a palindrome (20646464602).

The spelling of 20404224200 in words is "twenty billion, four hundred four million, two hundred twenty-four thousand, two hundred".