168808408 has 32 divisors (see below), whose sum is σ = 330969600. Its totient is φ = 80565408.

The previous prime is 168808379. The next prime is 168808417. The reversal of 168808408 is 804808861.

It is a super-2 number, since 2×168808408² = 56992557222988928, which contains 22 as substring.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161953 + ... + 162991.

It is an arithmetic number, because the mean of its divisors is an integer number (10342800).

Almost surely, 2^168808408 is an apocalyptic number.

It is an amenable number.

168808408 is a deficient number, since it is larger than the sum of its proper divisors (162161192).

168808408 is a wasteful number, since it uses less digits than its factorization.

168808408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1951 (or 1947 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 43.

The square root of 168808408 is about 12992.6289872373. The cubic root of 168808408 is about 552.6684735637.

The spelling of 168808408 in words is "one hundred sixty-eight million, eight hundred eight thousand, four hundred eight".