168438032 has 40 divisors (see below), whose sum is σ = 385838400. Its totient is φ = 69697152.

The previous prime is 168438031. The next prime is 168438043. The reversal of 168438032 is 230834861.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 168437983 and 168438001.

It is not an unprimeable number, because it can be changed into a prime (168438031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22682 + ... + 29177.

It is an arithmetic number, because the mean of its divisors is an integer number (9645960).

Almost surely, 2^168438032 is an apocalyptic number.

It is an amenable number.

168438032 is an abundant number, since it is smaller than the sum of its proper divisors (217400368).

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

168438032 is a wasteful number, since it uses less digits than its factorization.

168438032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51903 (or 51897 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 168438032 is about 12978.3678480770. The cubic root of 168438032 is about 552.2639814172.

The spelling of 168438032 in words is "one hundred sixty-eight million, four hundred thirty-eight thousand, thirty-two".