200243434 has 16 divisors (see below), whose sum is σ = 316590120. Its totient is φ = 94843840.

The previous prime is 200243429. The next prime is 200243441. The reversal of 200243434 is 434342002.

It can be written as a sum of positive squares in 4 ways, for example, as 200081025 + 162409 = 14145^2 + 403^2 .

It is a super-2 number, since 2×200243434² = 80194865720224712, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29497 + ... + 35644.

Almost surely, 2^200243434 is an apocalyptic number.

200243434 is a deficient number, since it is larger than the sum of its proper divisors (116346686).

200243434 is a wasteful number, since it uses less digits than its factorization.

200243434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65225.

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

The square root of 200243434 is about 14150.7396979805. The cubic root of 200243434 is about 585.0407198870.

Adding to 200243434 its reverse (434342002), we get a palindrome (634585436).

The spelling of 200243434 in words is "two hundred million, two hundred forty-three thousand, four hundred thirty-four".