200423434 has 8 divisors (see below), whose sum is σ = 300706308. Its totient is φ = 100188000.

The previous prime is 200423429. The next prime is 200423453. The reversal of 200423434 is 434324002.

It can be written as a sum of positive squares in 2 ways, for example, as 193905625 + 6517809 = 13925^2 + 2553^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1894 + ... + 20110.

Almost surely, 2^200423434 is an apocalyptic number.

200423434 is a deficient number, since it is larger than the sum of its proper divisors (100282874).

200423434 is a wasteful number, since it uses less digits than its factorization.

200423434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23720.

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 200423434 is about 14157.0983608930. The cubic root of 200423434 is about 585.2159662349.

Adding to 200423434 its reverse (434324002), we get a palindrome (634747436).

The spelling of 200423434 in words is "two hundred million, four hundred twenty-three thousand, four hundred thirty-four".