200049920 has 144 divisors (see below), whose sum is σ = 556295040. Its totient is φ = 67510272.

The previous prime is 200049919. The next prime is 200049961. The reversal of 200049920 is 29940002.

It is a self number, because there is not a number n which added to its sum of digits gives 200049920.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 743546 + ... + 743814.

It is an arithmetic number, because the mean of its divisors is an integer number (3863160).

Almost surely, 2^200049920 is an apocalyptic number.

200049920 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 200049920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278147520).

200049920 is an abundant number, since it is smaller than the sum of its proper divisors (356245120).

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

200049920 is an equidigital number, since it uses as much as digits as its factorization.

200049920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380 (or 366 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 200049920 is about 14143.9004521384. The cubic root of 200049920 is about 584.8521992501.

Adding to 200049920 its reverse (29940002), we get a palindrome (229989922).

The spelling of 200049920 in words is "two hundred million, forty-nine thousand, nine hundred twenty".