204164642 has 8 divisors (see below), whose sum is σ = 334087632. Its totient is φ = 92802100.

The previous prime is 204164641. The next prime is 204164657. The reversal of 204164642 is 246461402.

It is a happy number.

204164642 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 (204164641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4640084 + ... + 4640127.

It is an arithmetic number, because the mean of its divisors is an integer number (41760954).

Almost surely, 2^204164642 is an apocalyptic number.

204164642 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

204164642 is a deficient number, since it is larger than the sum of its proper divisors (129922990).

204164642 is a wasteful number, since it uses less digits than its factorization.

204164642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9280224.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 204164642 is about 14288.6193174848. The cubic root of 204164642 is about 588.8348565564.

The spelling of 204164642 in words is "two hundred four million, one hundred sixty-four thousand, six hundred forty-two".