200840641 has 4 divisors (see below), whose sum is σ = 201702852. Its totient is φ = 199978432.

The previous prime is 200840597. The next prime is 200840657. The reversal of 200840641 is 146048002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 98426241 + 102414400 = 9921^2 + 10120^2 .

It is a cyclic number.

It is not a de Polignac number, because 200840641 - 2¹¹ = 200838593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200840671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 430756 + ... + 431221.

It is an arithmetic number, because the mean of its divisors is an integer number (50425713).

Almost surely, 2^200840641 is an apocalyptic number.

It is an amenable number.

200840641 is a deficient number, since it is larger than the sum of its proper divisors (862211).

200840641 is an equidigital number, since it uses as much as digits as its factorization.

200840641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862210.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 200840641 is about 14171.8256057574. The cubic root of 200840641 is about 585.6217520826.

Adding to 200840641 its reverse (146048002), we get a palindrome (346888643).

The spelling of 200840641 in words is "two hundred million, eight hundred forty thousand, six hundred forty-one".