200389950 has 72 divisors (see below), whose sum is σ = 558354888. Its totient is φ = 53434080.

The previous prime is 200389949. The next prime is 200389967. The reversal of 200389950 is 59983002.

It is a super-2 number, since 2×200389950² = 80312264122005000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3904 + ... + 20396.

It is an arithmetic number, because the mean of its divisors is an integer number (7754929).

Almost surely, 2^200389950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200389950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279177444).

200389950 is an abundant number, since it is smaller than the sum of its proper divisors (357964938).

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

200389950 is a wasteful number, since it uses less digits than its factorization.

200389950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16520 (or 16503 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 200389950 is about 14155.9157245302. The cubic root of 200389950 is about 585.1833744660.

The spelling of 200389950 in words is "two hundred million, three hundred eighty-nine thousand, nine hundred fifty".