168692242 has 4 divisors (see below), whose sum is σ = 253038366. Its totient is φ = 84346120.

The previous prime is 168692239. The next prime is 168692257. The reversal of 168692242 is 242296861.

168692242 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 242296861 = 1499 ⋅161639.

It can be written as a sum of positive squares in only one way, i.e., 138321121 + 30371121 = 11761^2 + 5511^2 .

It is a junction number, because it is equal to n+sod(n) for n = 168692195 and 168692204.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42173059 + ... + 42173062.

Almost surely, 2^168692242 is an apocalyptic number.

168692242 is a deficient number, since it is larger than the sum of its proper divisors (84346124).

168692242 is an equidigital number, since it uses as much as digits as its factorization.

168692242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84346123.

The product of its digits is 82944, while the sum is 40.

The square root of 168692242 is about 12988.1577600520. The cubic root of 168692242 is about 552.5416709969.

The spelling of 168692242 in words is "one hundred sixty-eight million, six hundred ninety-two thousand, two hundred forty-two".