194742346 has 4 divisors (see below), whose sum is σ = 292113522. Its totient is φ = 97371172.

The previous prime is 194742307. The next prime is 194742377. The reversal of 194742346 is 643247491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 643247491 = 4523 ⋅142217.

It can be written as a sum of positive squares in only one way, i.e., 115799121 + 78943225 = 10761^2 + 8885^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 194742299 and 194742308.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48685585 + ... + 48685588.

Almost surely, 2^194742346 is an apocalyptic number.

194742346 is a deficient number, since it is larger than the sum of its proper divisors (97371176).

194742346 is an equidigital number, since it uses as much as digits as its factorization.

194742346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97371175.

The product of its digits is 145152, while the sum is 40.

The square root of 194742346 is about 13955.0115012493. The cubic root of 194742346 is about 579.6334842533.

The spelling of 194742346 in words is "one hundred ninety-four million, seven hundred forty-two thousand, three hundred forty-six".