168087242 has 8 divisors (see below), whose sum is σ = 253326432. Its totient is φ = 83645100.

The previous prime is 168087233. The next prime is 168087247. The reversal of 168087242 is 242780861.

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 = 168087196 and 168087205.

It is not an unprimeable number, because it can be changed into a prime (168087247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198734 + ... + 199577.

It is an arithmetic number, because the mean of its divisors is an integer number (31665804).

Almost surely, 2^168087242 is an apocalyptic number.

168087242 is a deficient number, since it is larger than the sum of its proper divisors (85239190).

168087242 is a wasteful number, since it uses less digits than its factorization.

168087242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398524.

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 168087242 is about 12964.8463932281. The cubic root of 168087242 is about 551.8803322647.

The spelling of 168087242 in words is "one hundred sixty-eight million, eighty-seven thousand, two hundred forty-two".