168049390 has 8 divisors (see below), whose sum is σ = 302488920. Its totient is φ = 67219752.

The previous prime is 168049381. The next prime is 168049391. The reversal of 168049390 is 93940861.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168049391) by changing a digit.

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, 8402460 + ... + 8402479.

It is an arithmetic number, because the mean of its divisors is an integer number (37811115).

Almost surely, 2^168049390 is an apocalyptic number.

168049390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168049390 is a deficient number, since it is larger than the sum of its proper divisors (134439530).

168049390 is a wasteful number, since it uses less digits than its factorization.

168049390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16804946.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 168049390 is about 12963.3865174190. The cubic root of 168049390 is about 551.8389027024.

The spelling of 168049390 in words is "one hundred sixty-eight million, forty-nine thousand, three hundred ninety".