205455342 has 16 divisors (see below), whose sum is σ = 412860672. Its totient is φ = 68160120.

The previous prime is 205455331. The next prime is 205455347. The reversal of 205455342 is 243554502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205455347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79878 + ... + 82409.

It is an arithmetic number, because the mean of its divisors is an integer number (25803792).

Almost surely, 2^205455342 is an apocalyptic number.

205455342 is an abundant number, since it is smaller than the sum of its proper divisors (207405330).

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

205455342 is a wasteful number, since it uses less digits than its factorization.

205455342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162503.

The product of its (nonzero) digits is 24000, while the sum is 30.

The square root of 205455342 is about 14333.7134755792. The cubic root of 205455342 is about 590.0730944583.

The spelling of 205455342 in words is "two hundred five million, four hundred fifty-five thousand, three hundred forty-two".