168642672 has 40 divisors (see below), whose sum is σ = 475267200. Its totient is φ = 51103680.

The previous prime is 168642659. The next prime is 168642757. The reversal of 168642672 is 276246861.

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, 159172 + ... + 160227.

It is an arithmetic number, because the mean of its divisors is an integer number (11881680).

Almost surely, 2^168642672 is an apocalyptic number.

168642672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

168642672 is an abundant number, since it is smaller than the sum of its proper divisors (306624528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168642672 is a wasteful number, since it uses less digits than its factorization.

168642672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319421 (or 319415 counting only the distinct ones).

The product of its digits is 193536, while the sum is 42.

The square root of 168642672 is about 12986.2493430551. The cubic root of 168642672 is about 552.4875444733.

The spelling of 168642672 in words is "one hundred sixty-eight million, six hundred forty-two thousand, six hundred seventy-two".