200040434 has 16 divisors (see below), whose sum is σ = 338627520. Its totient is φ = 87791760.

The previous prime is 200040433. The next prime is 200040443. The reversal of 200040434 is 434040002.

It is a super-3 number, since 3×200040434³ (a number of 26 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (200040433) by changing a digit.

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, 156134 + ... + 157409.

It is an arithmetic number, because the mean of its divisors is an integer number (21164220).

Almost surely, 2^200040434 is an apocalyptic number.

200040434 is a deficient number, since it is larger than the sum of its proper divisors (138587086).

200040434 is a wasteful number, since it uses less digits than its factorization.

200040434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313585.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 200040434 is about 14143.5651092644. The cubic root of 200040434 is about 584.8429548981.

Adding to 200040434 its reverse (434040002), we get a palindrome (634080436).

The spelling of 200040434 in words is "two hundred million, forty thousand, four hundred thirty-four".