168709430 has 8 divisors (see below), whose sum is σ = 303676992. Its totient is φ = 67483768.

The previous prime is 168709423. The next prime is 168709447. The reversal of 168709430 is 34907861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8435462 + ... + 8435481.

It is an arithmetic number, because the mean of its divisors is an integer number (37959624).

Almost surely, 2^168709430 is an apocalyptic number.

168709430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168709430 is a deficient number, since it is larger than the sum of its proper divisors (134967562).

168709430 is a wasteful number, since it uses less digits than its factorization.

168709430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16870950.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 168709430 is about 12988.8194228729. The cubic root of 168709430 is about 552.5604364592.

The spelling of 168709430 in words is "one hundred sixty-eight million, seven hundred nine thousand, four hundred thirty".