194909042 has 8 divisors (see below), whose sum is σ = 293848236. Its totient is φ = 96959632.

The previous prime is 194909017. The next prime is 194909053. The reversal of 194909042 is 240909491.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 117310561 + 77598481 = 10831^2 + 8809^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 194908987 and 194909005.

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, 246953 + ... + 247740.

Almost surely, 2^194909042 is an apocalyptic number.

194909042 is a deficient number, since it is larger than the sum of its proper divisors (98939194).

194909042 is a wasteful number, since it uses less digits than its factorization.

194909042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494892.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 194909042 is about 13960.9828450579. The cubic root of 194909042 is about 579.7988224199.

The spelling of 194909042 in words is "one hundred ninety-four million, nine hundred nine thousand, forty-two".