200444661 has 24 divisors (see below), whose sum is σ = 305997120. Its totient is φ = 126086976.

The previous prime is 200444659. The next prime is 200444669. The reversal of 200444661 is 166444002.

It is not a de Polignac number, because 200444661 - 2¹ = 200444659 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200444669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42745 + ... + 47201.

It is an arithmetic number, because the mean of its divisors is an integer number (12749880).

Almost surely, 2^200444661 is an apocalyptic number.

It is an amenable number.

200444661 is a deficient number, since it is larger than the sum of its proper divisors (105552459).

200444661 is a wasteful number, since it uses less digits than its factorization.

200444661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4745 (or 4742 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 200444661 is about 14157.8480356303. The cubic root of 200444661 is about 585.2366257299.

Adding to 200444661 its reverse (166444002), we get a palindrome (366888663).

It can be divided in two parts, 2004 and 44661, that added together give a triangular number (46665 = T₃₀₅).

The spelling of 200444661 in words is "two hundred million, four hundred forty-four thousand, six hundred sixty-one".