200134242 has 72 divisors (see below), whose sum is σ = 544759488. Its totient is φ = 51978960.

The previous prime is 200134241. The next prime is 200134261. The reversal of 200134242 is 242431002.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (200134241) 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 35 ways as a sum of consecutive naturals, for example, 8683 + ... + 21809.

It is an arithmetic number, because the mean of its divisors is an integer number (7566104).

Almost surely, 2^200134242 is an apocalyptic number.

200134242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 200134242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272379744).

200134242 is an abundant number, since it is smaller than the sum of its proper divisors (344625246).

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

200134242 is a wasteful number, since it uses less digits than its factorization.

200134242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13164 (or 13150 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 200134242 is about 14146.8809990047. The cubic root of 200134242 is about 584.9343603757.

Adding to 200134242 its reverse (242431002), we get a palindrome (442565244).

The spelling of 200134242 in words is "two hundred million, one hundred thirty-four thousand, two hundred forty-two".