168988408 has 16 divisors (see below), whose sum is σ = 317033280. Its totient is φ = 84446208.

The previous prime is 168988399. The next prime is 168988411. The reversal of 168988408 is 804889861.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12216 + ... + 22072.

It is an arithmetic number, because the mean of its divisors is an integer number (19814580).

Almost surely, 2^168988408 is an apocalyptic number.

It is an amenable number.

168988408 is a deficient number, since it is larger than the sum of its proper divisors (148044872).

168988408 is a wasteful number, since it uses less digits than its factorization.

168988408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12006 (or 12002 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 52.

The square root of 168988408 is about 12999.5541462006. The cubic root of 168988408 is about 552.8648401405.

The spelling of 168988408 in words is "one hundred sixty-eight million, nine hundred eighty-eight thousand, four hundred eight".