20424011200 has 84 divisors (see below), whose sum is σ = 50388560640. Its totient is φ = 8148029440.

The previous prime is 20424011189. The next prime is 20424011227. The reversal of 20424011200 is 211042402.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 596136 + ... + 629464.

Almost surely, 2^20424011200 is an apocalyptic number.

20424011200 is a gapful number since it is divisible by the number (20) 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 20424011200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25194280320).

20424011200 is an abundant number, since it is smaller than the sum of its proper divisors (29964549440).

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

20424011200 is a wasteful number, since it uses less digits than its factorization.

20424011200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33734 (or 33719 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20424011200 its reverse (211042402), we get a palindrome (20635053602).

The spelling of 20424011200 in words is "twenty billion, four hundred twenty-four million, eleven thousand, two hundred".