168673268 has 6 divisors (see below), whose sum is σ = 295178226. Its totient is φ = 84336632.

The previous prime is 168673261. The next prime is 168673277. The reversal of 168673268 is 862376861.

It can be written as a sum of positive squares in only one way, i.e., 167391844 + 1281424 = 12938^2 + 1132^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168673261) 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, 21084155 + ... + 21084162.

It is an arithmetic number, because the mean of its divisors is an integer number (49196371).

Almost surely, 2^168673268 is an apocalyptic number.

It is an amenable number.

168673268 is a deficient number, since it is larger than the sum of its proper divisors (126504958).

168673268 is a wasteful number, since it uses less digits than its factorization.

168673268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42168321 (or 42168319 counting only the distinct ones).

The product of its digits is 580608, while the sum is 47.

The square root of 168673268 is about 12987.4273048976. The cubic root of 168673268 is about 552.5209541407.

The spelling of 168673268 in words is "one hundred sixty-eight million, six hundred seventy-three thousand, two hundred sixty-eight".