200423844 has 18 divisors (see below), whose sum is σ = 506627030. Its totient is φ = 66807936.

The previous prime is 200423833. The next prime is 200423851. The reversal of 200423844 is 448324002.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 189612900 + 10810944 = 13770^2 + 3288^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2783629 + ... + 2783700.

Almost surely, 2^200423844 is an apocalyptic number.

It is an amenable number.

200423844 is an abundant number, since it is smaller than the sum of its proper divisors (306203186).

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

200423844 is a wasteful number, since it uses less digits than its factorization.

200423844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5567339 (or 5567334 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 200423844 is about 14157.1128412540. The cubic root of 200423844 is about 585.2163652874.

Adding to 200423844 its reverse (448324002), we get a palindrome (648747846).

The spelling of 200423844 in words is "two hundred million, four hundred twenty-three thousand, eight hundred forty-four".