200323136 has 42 divisors (see below), whose sum is σ = 430469802. Its totient is φ = 92451840.

The previous prime is 200323133. The next prime is 200323141. The reversal of 200323136 is 631323002.

It can be written as a sum of positive squares in 3 ways, for example, as 24601600 + 175721536 = 4960^2 + 13256^2 .

It is not an unprimeable number, because it can be changed into a prime (200323133) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1556 + ... + 20076.

It is an arithmetic number, because the mean of its divisors is an integer number (10249281).

Almost surely, 2^200323136 is an apocalyptic number.

200323136 is a gapful number since it is divisible by the number (26) 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 200323136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215234901).

200323136 is an abundant number, since it is smaller than the sum of its proper divisors (230146666).

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

200323136 is a wasteful number, since it uses less digits than its factorization.

200323136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18559 (or 18536 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 200323136 is about 14153.5555956798. Note that the first 4 decimals coincide. The cubic root of 200323136 is about 585.1183299728.

Adding to 200323136 its reverse (631323002), we get a palindrome (831646138).

The spelling of 200323136 in words is "two hundred million, three hundred twenty-three thousand, one hundred thirty-six".