200010042 has 36 divisors (see below), whose sum is σ = 449023770. Its totient is φ = 64267056.

The previous prime is 200010037. The next prime is 200010077. The reversal of 200010042 is 240010002.

It can be written as a sum of positive squares in only one way, i.e., 168974001 + 31036041 = 12999^2 + 5571^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 322809 + ... + 323427.

Almost surely, 2^200010042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200010042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224511885).

200010042 is an abundant number, since it is smaller than the sum of its proper divisors (249013728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

200010042 is an equidigital number, since it uses as much as digits as its factorization.

200010042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275 (or 653 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 200010042 is about 14142.4906575893. The cubic root of 200010042 is about 584.8133351408.

Adding to 200010042 its reverse (240010002), we get a palindrome (440020044).

The spelling of 200010042 in words is "two hundred million, ten thousand, forty-two".