194679742 has 4 divisors (see below), whose sum is σ = 292019616. Its totient is φ = 97339870.

The previous prime is 194679713. The next prime is 194679743. The reversal of 194679742 is 247976491.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194679743) 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 as a sum of consecutive naturals, namely, 48669934 + ... + 48669937.

It is an arithmetic number, because the mean of its divisors is an integer number (73004904).

Almost surely, 2^194679742 is an apocalyptic number.

194679742 is a deficient number, since it is larger than the sum of its proper divisors (97339874).

194679742 is an equidigital number, since it uses as much as digits as its factorization.

194679742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97339873.

The product of its digits is 762048, while the sum is 49.

The square root of 194679742 is about 13952.7682557978. The cubic root of 194679742 is about 579.5713658277.

The spelling of 194679742 in words is "one hundred ninety-four million, six hundred seventy-nine thousand, seven hundred forty-two".