168674404 has 6 divisors (see below), whose sum is σ = 295180214. Its totient is φ = 84337200.

The previous prime is 168674371. The next prime is 168674417. The reversal of 168674404 is 404476861.

It can be written as a sum of positive squares in only one way, i.e., 159971904 + 8702500 = 12648^2 + 2950^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21084297 + ... + 21084304.

Almost surely, 2^168674404 is an apocalyptic number.

It is an amenable number.

168674404 is a deficient number, since it is larger than the sum of its proper divisors (126505810).

168674404 is a wasteful number, since it uses less digits than its factorization.

168674404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42168605 (or 42168603 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 168674404 is about 12987.4710394287. The cubic root of 168674404 is about 552.5221945317.

The spelling of 168674404 in words is "one hundred sixty-eight million, six hundred seventy-four thousand, four hundred four".