192404642 has 8 divisors (see below), whose sum is σ = 288676332. Its totient is φ = 96179200.

The previous prime is 192404633. The next prime is 192404717. The reversal of 192404642 is 246404291.

It is a Cunningham number, because it is equal to 13871²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 192404641 + 1 = 13871^2 + 1^2 .

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 = 192404599 and 192404608.

It is an unprimeable number.

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, 2042 + ... + 19722.

Almost surely, 2^192404642 is an apocalyptic number.

192404642 is a deficient number, since it is larger than the sum of its proper divisors (96271690).

192404642 is a wasteful number, since it uses less digits than its factorization.

192404642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23124.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 192404642 is about 13871.0000360464. Note that the first 4 decimals coincide. The cubic root of 192404642 is about 577.3048178817.

The spelling of 192404642 in words is "one hundred ninety-two million, four hundred four thousand, six hundred forty-two".