194240066 has 8 divisors (see below), whose sum is σ = 291445824. Its totient is φ = 97091460.

The previous prime is 194240051. The next prime is 194240077. The reversal of 194240066 is 660042491.

It is a happy number.

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

It is a Curzon 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, 4430 + ... + 20201.

It is an arithmetic number, because the mean of its divisors is an integer number (36430728).

Almost surely, 2^194240066 is an apocalyptic number.

194240066 is a deficient number, since it is larger than the sum of its proper divisors (97205758).

194240066 is a wasteful number, since it uses less digits than its factorization.

194240066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28576.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 194240066 is about 13937.0034799450. The cubic root of 194240066 is about 579.1347244419.

The spelling of 194240066 in words is "one hundred ninety-four million, two hundred forty thousand, sixty-six".