200143424 has 56 divisors (see below), whose sum is σ = 446349120. Its totient is φ = 88349184.

The previous prime is 200143421. The next prime is 200143441. The reversal of 200143424 is 424341002.

It is a junction number, because it is equal to n+sod(n) for n = 200143396 and 200143405.

It is not an unprimeable number, because it can be changed into a prime (200143421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13907 + ... + 24365.

It is an arithmetic number, because the mean of its divisors is an integer number (7970520).

Almost surely, 2^200143424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200143424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223174560).

200143424 is an abundant number, since it is smaller than the sum of its proper divisors (246205696).

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

200143424 is a wasteful number, since it uses less digits than its factorization.

200143424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10507 (or 10497 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 200143424 is about 14147.2055191122. The cubic root of 200143424 is about 584.9433056802.

Adding to 200143424 its reverse (424341002), we get a palindrome (624484426).

The spelling of 200143424 in words is "two hundred million, one hundred forty-three thousand, four hundred twenty-four".