168840002 has 8 divisors (see below), whose sum is σ = 254202300. Its totient is φ = 84105904.

The previous prime is 168839999. The next prime is 168840013. The reversal of 168840002 is 200048861.

It can be written as a sum of positive squares in 2 ways, for example, as 161061481 + 7778521 = 12691^2 + 2789^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156377 + ... + 157452.

Almost surely, 2^168840002 is an apocalyptic number.

168840002 is a deficient number, since it is larger than the sum of its proper divisors (85362298).

168840002 is a wasteful number, since it uses less digits than its factorization.

168840002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314100.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 168840002 is about 12993.8447735841. The cubic root of 168840002 is about 552.7029503585.

Adding to 168840002 its reverse (200048861), we get a palindrome (368888863).

The spelling of 168840002 in words is "one hundred sixty-eight million, eight hundred forty thousand, two".