194809834 has 8 divisors (see below), whose sum is σ = 309403908. Its totient is φ = 91675200.

The previous prime is 194809829. The next prime is 194809837. The reversal of 194809834 is 438908491.

It can be written as a sum of positive squares in 2 ways, for example, as 171741025 + 23068809 = 13105^2 + 4803^2 .

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

It is not an unprimeable number, because it can be changed into a prime (194809837) 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 3 ways as a sum of consecutive naturals, for example, 2864817 + ... + 2864884.

Almost surely, 2^194809834 is an apocalyptic number.

194809834 is a deficient number, since it is larger than the sum of its proper divisors (114594074).

194809834 is a wasteful number, since it uses less digits than its factorization.

194809834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5729720.

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 194809834 is about 13957.4293478420. The cubic root of 194809834 is about 579.7004338878.

The spelling of 194809834 in words is "one hundred ninety-four million, eight hundred nine thousand, eight hundred thirty-four".