205251342 has 8 divisors (see below), whose sum is σ = 410502696. Its totient is φ = 68417112.

The previous prime is 205251329. The next prime is 205251367. The reversal of 205251342 is 243152502.

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

205251342 is an admirable number.

It is a super-2 number, since 2×205251342² = 84256226785601928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17104273 + ... + 17104284.

It is an arithmetic number, because the mean of its divisors is an integer number (51312837).

Almost surely, 2^205251342 is an apocalyptic number.

205251342 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

205251342 is a wasteful number, since it uses less digits than its factorization.

205251342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34208562.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 205251342 is about 14326.5956179408. The cubic root of 205251342 is about 589.8777320131.

The spelling of 205251342 in words is "two hundred five million, two hundred fifty-one thousand, three hundred forty-two".