200342434 has 4 divisors (see below), whose sum is σ = 300513654. Its totient is φ = 100171216.

The previous prime is 200342423. The next prime is 200342447. The reversal of 200342434 is 434243002.

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

It can be written as a sum of positive squares in only one way, i.e., 193293409 + 7049025 = 13903^2 + 2655^2 .

It is a super-2 number, since 2×200342434² = 80274181722088712, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 50085607 + ... + 50085610.

Almost surely, 2^200342434 is an apocalyptic number.

200342434 is a deficient number, since it is larger than the sum of its proper divisors (100171220).

200342434 is a wasteful number, since it uses less digits than its factorization.

200342434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100171219.

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

The square root of 200342434 is about 14154.2373160831. The cubic root of 200342434 is about 585.1371183684.

Adding to 200342434 its reverse (434243002), we get a palindrome (634585436).

The spelling of 200342434 in words is "two hundred million, three hundred forty-two thousand, four hundred thirty-four".