20144402200 has 96 divisors (see below), whose sum is σ = 50474738160. Its totient is φ = 7432588800.

The previous prime is 20144402197. The next prime is 20144402209. The reversal of 20144402200 is 220444102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20144402209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7099182 + ... + 7102018.

Almost surely, 2^20144402200 is an apocalyptic number.

20144402200 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 20144402200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25237369080).

20144402200 is an abundant number, since it is smaller than the sum of its proper divisors (30330335960).

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

20144402200 is a wasteful number, since it uses less digits than its factorization.

20144402200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5597 (or 5588 counting only the distinct ones).

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

Adding to 20144402200 its reverse (220444102), we get a palindrome (20364846302).

The spelling of 20144402200 in words is "twenty billion, one hundred forty-four million, four hundred two thousand, two hundred".