204042102 has 32 divisors (see below), whose sum is σ = 468616320. Its totient is φ = 58576320.

The previous prime is 204042079. The next prime is 204042127. The reversal of 204042102 is 201240402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80103 + ... + 82610.

It is an arithmetic number, because the mean of its divisors is an integer number (14644260).

Almost surely, 2^204042102 is an apocalyptic number.

204042102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

204042102 is an abundant number, since it is smaller than the sum of its proper divisors (264574218).

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

204042102 is a wasteful number, since it uses less digits than its factorization.

204042102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162748.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 204042102 is about 14284.3306458511. The cubic root of 204042102 is about 588.7170263852.

Adding to 204042102 its reverse (201240402), we get a palindrome (405282504).

The spelling of 204042102 in words is "two hundred four million, forty-two thousand, one hundred two".