205254342 has 24 divisors (see below), whose sum is σ = 447029544. Its totient is φ = 68062464.

The previous prime is 205254341. The next prime is 205254347. The reversal of 205254342 is 243452502.

It is a happy number.

205254342 is a `hidden beast` number, since 205 + 25 + 434 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205254341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26068 + ... + 33015.

It is an arithmetic number, because the mean of its divisors is an integer number (18626231).

Almost surely, 2^205254342 is an apocalyptic number.

205254342 is an abundant number, since it is smaller than the sum of its proper divisors (241775202).

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

205254342 is a wasteful number, since it uses less digits than its factorization.

205254342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59284 (or 59281 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 205254342 is about 14326.7003179378. The cubic root of 205254342 is about 589.8806059278.

The spelling of 205254342 in words is "two hundred five million, two hundred fifty-four thousand, three hundred forty-two".