205443194 has 8 divisors (see below), whose sum is σ = 336179808. Its totient is φ = 93383260.

The previous prime is 205443193. The next prime is 205443197. The reversal of 205443194 is 491344502.

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

It is a self number, because there is not a number n which added to its sum of digits gives 205443194.

It is not an unprimeable number, because it can be changed into a prime (205443193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4669142 + ... + 4669185.

It is an arithmetic number, because the mean of its divisors is an integer number (42022476).

Almost surely, 2^205443194 is an apocalyptic number.

205443194 is a deficient number, since it is larger than the sum of its proper divisors (130736614).

205443194 is a wasteful number, since it uses less digits than its factorization.

205443194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9338340.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 205443194 is about 14333.2897131119. The cubic root of 205443194 is about 590.0614644383.

Adding to 205443194 its reverse (491344502), we get a palindrome (696787696).

The spelling of 205443194 in words is "two hundred five million, four hundred forty-three thousand, one hundred ninety-four".