204243404342402 has 16 divisors (see below), whose sum is σ = 317458102727040. Its totient is φ = 98484161407632.

The previous prime is 204243404342399. The next prime is 204243404342423.

It is a happy number.

204243404342402 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15031153373 + ... + 15031166960.

It is an arithmetic number, because the mean of its divisors is an integer number (19841131420440).

Almost surely, 2^{204243404342402} is an apocalyptic number.

204243404342402 is a deficient number, since it is larger than the sum of its proper divisors (113214698384638).

204243404342402 is a wasteful number, since it uses less digits than its factorization.

204243404342402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30062320457.

The product of its (nonzero) digits is 589824, while the sum is 38.

It can be divided in two parts, 20424340 and 4342402, that added together give a palindrome (24766742).

The spelling of 204243404342402 in words is "two hundred four trillion, two hundred forty-three billion, four hundred four million, three hundred forty-two thousand, four hundred two".