204142618 has 8 divisors (see below), whose sum is σ = 319527648. Its totient is φ = 97633404.

The previous prime is 204142607. The next prime is 204142619. The reversal of 204142618 is 816241402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (204142619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2218896 + ... + 2218987.

It is an arithmetic number, because the mean of its divisors is an integer number (39940956).

Almost surely, 2^204142618 is an apocalyptic number.

204142618 is a deficient number, since it is larger than the sum of its proper divisors (115385030).

204142618 is a wasteful number, since it uses less digits than its factorization.

204142618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4437908.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 204142618 is about 14287.8486134197. The cubic root of 204142618 is about 588.8136825257.

It can be divided in two parts, 20414 and 2618, that added together give a palindrome (23032).

The spelling of 204142618 in words is "two hundred four million, one hundred forty-two thousand, six hundred eighteen".