205355042 has 8 divisors (see below), whose sum is σ = 310911696. Its totient is φ = 101717812.

The previous prime is 205355041. The next prime is 205355077. The reversal of 205355042 is 240553502.

205355042 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 (205355041) 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, 479588 + ... + 480015.

It is an arithmetic number, because the mean of its divisors is an integer number (38863962).

Almost surely, 2^205355042 is an apocalyptic number.

205355042 is a deficient number, since it is larger than the sum of its proper divisors (105556654).

205355042 is a wasteful number, since it uses less digits than its factorization.

205355042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959712.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 205355042 is about 14330.2143040500. The cubic root of 205355042 is about 589.9770574244.

The spelling of 205355042 in words is "two hundred five million, three hundred fifty-five thousand, forty-two".