204100380306 has 24 divisors (see below), whose sum is σ = 442663762944. Its totient is φ = 67964802840.

The previous prime is 204100380299. The next prime is 204100380307. The reversal of 204100380306 is 603083001402.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 204100380306.

It is not an unprimeable number, because it can be changed into a prime (204100380307) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5703106 + ... + 5738781.

It is an arithmetic number, because the mean of its divisors is an integer number (18444323456).

Almost surely, 2^204100380306 is an apocalyptic number.

204100380306 is an abundant number, since it is smaller than the sum of its proper divisors (238563382638).

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

204100380306 is a wasteful number, since it uses less digits than its factorization.

204100380306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11442886 (or 11442883 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 204100380306 its reverse (603083001402), we get a palindrome (807183381708).

The spelling of 204100380306 in words is "two hundred four billion, one hundred million, three hundred eighty thousand, three hundred six".