204245152342 has 64 divisors (see below), whose sum is σ = 407618666496. Its totient is φ = 74305244160.

The previous prime is 204245152297. The next prime is 204245152343. The reversal of 204245152342 is 243251542402.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 204245152298 and 204245152307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204245152343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25338 + ... + 639634.

It is an arithmetic number, because the mean of its divisors is an integer number (6369041664).

Almost surely, 2^204245152342 is an apocalyptic number.

204245152342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

204245152342 is a deficient number, since it is larger than the sum of its proper divisors (203373514154).

204245152342 is a wasteful number, since it uses less digits than its factorization.

204245152342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614461.

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 204245152342 its reverse (243251542402), we get a palindrome (447496694744).

The spelling of 204245152342 in words is "two hundred four billion, two hundred forty-five million, one hundred fifty-two thousand, three hundred forty-two".