200042931 has 16 divisors (see below), whose sum is σ = 294658560. Its totient is φ = 119701920.

The previous prime is 200042929. The next prime is 200042987. The reversal of 200042931 is 139240002.

It is not a de Polignac number, because 200042931 - 2¹ = 200042929 is a prime.

It is a super-2 number, since 2×200042931² = 80034348486141522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 200042898 and 200042907.

It is not an unprimeable number, because it can be changed into a prime (200042911) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 35760 + ... + 40973.

It is an arithmetic number, because the mean of its divisors is an integer number (18416160).

Almost surely, 2^200042931 is an apocalyptic number.

200042931 is a deficient number, since it is larger than the sum of its proper divisors (94615629).

200042931 is a wasteful number, since it uses less digits than its factorization.

200042931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76826.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 200042931 is about 14143.6533823479. The cubic root of 200042931 is about 584.8453883175.

Adding to 200042931 its reverse (139240002), we get a palindrome (339282933).

The spelling of 200042931 in words is "two hundred million, forty-two thousand, nine hundred thirty-one".