166928432 has 20 divisors (see below), whose sum is σ = 352826376. Its totient is φ = 75876480.

The previous prime is 166928431. The next prime is 166928441. The reversal of 166928432 is 234829661.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 166928432.

It is not an unprimeable number, because it can be changed into a prime (166928431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 474053 + ... + 474404.

Almost surely, 2^166928432 is an apocalyptic number.

It is an amenable number.

166928432 is an abundant number, since it is smaller than the sum of its proper divisors (185897944).

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

166928432 is a wasteful number, since it uses less digits than its factorization.

166928432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948476 (or 948470 counting only the distinct ones).

The product of its digits is 124416, while the sum is 41.

The square root of 166928432 is about 12920.0786375316. The cubic root of 166928432 is about 550.6091674751.

The spelling of 166928432 in words is "one hundred sixty-six million, nine hundred twenty-eight thousand, four hundred thirty-two".