200321982 has 96 divisors (see below), whose sum is σ = 538259904. Its totient is φ = 52531200.

The previous prime is 200321981. The next prime is 200322013. The reversal of 200321982 is 289123002.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200321981) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 86682 + ... + 88962.

It is an arithmetic number, because the mean of its divisors is an integer number (5606874).

Almost surely, 2^200321982 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200321982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269129952).

200321982 is an abundant number, since it is smaller than the sum of its proper divisors (337937922).

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

200321982 is a wasteful number, since it uses less digits than its factorization.

200321982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2354 (or 2351 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 200321982 is about 14153.5148284799. The cubic root of 200321982 is about 585.1172064084.

Adding to 200321982 its reverse (289123002), we get a palindrome (489444984).

The spelling of 200321982 in words is "two hundred million, three hundred twenty-one thousand, nine hundred eighty-two".