200831040 has 168 divisors, whose sum is σ = 697184280. Its totient is φ = 53059584.

The previous prime is 200831039. The next prime is 200831063. The reversal of 200831040 is 40138002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 52186176 + 148644864 = 7224^2 + 12192^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 394306 + ... + 394814.

Almost surely, 2^200831040 is an apocalyptic number.

200831040 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 200831040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348592140).

200831040 is an abundant number, since it is smaller than the sum of its proper divisors (496353240).

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

200831040 is a wasteful number, since it uses less digits than its factorization.

200831040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669 (or 656 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 200831040 is about 14171.4868662395. The cubic root of 200831040 is about 585.6124202329.

Adding to 200831040 its reverse (40138002), we get a palindrome (240969042).

The spelling of 200831040 in words is "two hundred million, eight hundred thirty-one thousand, forty".