168419730 has 16 divisors (see below), whose sum is σ = 404207424. Its totient is φ = 44911920.

The previous prime is 168419701. The next prime is 168419747. The reversal of 168419730 is 37914861.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2806966 + ... + 2807025.

It is an arithmetic number, because the mean of its divisors is an integer number (25262964).

Almost surely, 2^168419730 is an apocalyptic number.

168419730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168419730 is an abundant number, since it is smaller than the sum of its proper divisors (235787694).

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

168419730 is a wasteful number, since it uses less digits than its factorization.

168419730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5614001.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 168419730 is about 12977.6627325570. The cubic root of 168419730 is about 552.2439782122.

The spelling of 168419730 in words is "one hundred sixty-eight million, four hundred nineteen thousand, seven hundred thirty".