205068190 has 8 divisors (see below), whose sum is σ = 369122760. Its totient is φ = 82027272.

The previous prime is 205068187. The next prime is 205068203. The reversal of 205068190 is 91860502.

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

It is a super-2 number, since 2×205068190² = 84105925099752200, 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, 10253400 + ... + 10253419.

It is an arithmetic number, because the mean of its divisors is an integer number (46140345).

Almost surely, 2^205068190 is an apocalyptic number.

205068190 is a deficient number, since it is larger than the sum of its proper divisors (164054570).

205068190 is a wasteful number, since it uses less digits than its factorization.

205068190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20506826.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 205068190 is about 14320.2021633774. The cubic root of 205068190 is about 589.7022245333.

The spelling of 205068190 in words is "two hundred five million, sixty-eight thousand, one hundred ninety".