168305872 has 40 divisors (see below), whose sum is σ = 380618496. Its totient is φ = 70594176.

The previous prime is 168305869. The next prime is 168305897. The reversal of 168305872 is 278503861.

168305872 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 10723 + ... + 21250.

Almost surely, 2^168305872 is an apocalyptic number.

It is an amenable number.

168305872 is an abundant number, since it is smaller than the sum of its proper divisors (212312624).

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

168305872 is a wasteful number, since it uses less digits than its factorization.

168305872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32035 (or 32029 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 168305872 is about 12973.2752996304. The cubic root of 168305872 is about 552.1195043370.

The spelling of 168305872 in words is "one hundred sixty-eight million, three hundred five thousand, eight hundred seventy-two".