200000042 has 64 divisors (see below), whose sum is σ = 365783040. Its totient is φ = 80942400.

The previous prime is 200000039. The next prime is 200000051. The reversal of 200000042 is 240000002.

It is a junction number, because it is equal to n+sod(n) for n = 199999975 and 200000029.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 682448 + ... + 682740.

It is an arithmetic number, because the mean of its divisors is an integer number (5715360).

Almost surely, 2^200000042 is an apocalyptic number.

200000042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

200000042 is a deficient number, since it is larger than the sum of its proper divisors (165782998).

200000042 is a wasteful number, since it uses less digits than its factorization.

200000042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419.

The product of its (nonzero) digits is 16, while the sum is 8.

The square root of 200000042 is about 14142.1371086551. The cubic root of 200000042 is about 584.8035885788.

Adding to 200000042 its reverse (240000002), we get a palindrome (440000044).

The spelling of 200000042 in words is "two hundred million, forty-two", and thus it is an aban number.