168028408 has 16 divisors (see below), whose sum is σ = 333586080. Its totient is φ = 79072128.

The previous prime is 168028403. The next prime is 168028411. The reversal of 168028408 is 804820861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168028403) by changing a digit.

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, 617616 + ... + 617887.

It is an arithmetic number, because the mean of its divisors is an integer number (20849130).

Almost surely, 2^168028408 is an apocalyptic number.

It is an amenable number.

168028408 is a deficient number, since it is larger than the sum of its proper divisors (165557672).

168028408 is a wasteful number, since it uses less digits than its factorization.

168028408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235526 (or 1235522 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 37.

The square root of 168028408 is about 12962.5772128848. The cubic root of 168028408 is about 551.8159349194.

The spelling of 168028408 in words is "one hundred sixty-eight million, twenty-eight thousand, four hundred eight".