168380423 has 4 divisors (see below), whose sum is σ = 168424368. Its totient is φ = 168336480.

The previous prime is 168380419. The next prime is 168380441. The reversal of 168380423 is 324083861.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324083861 = 8563 ⋅37847.

It is a cyclic number.

It is not a de Polignac number, because 168380423 - 2² = 168380419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168380473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15611 + ... + 24092.

It is an arithmetic number, because the mean of its divisors is an integer number (42106092).

Almost surely, 2^168380423 is an apocalyptic number.

168380423 is a deficient number, since it is larger than the sum of its proper divisors (43945).

168380423 is an equidigital number, since it uses as much as digits as its factorization.

168380423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43944.

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

The square root of 168380423 is about 12976.1482343568. The cubic root of 168380423 is about 552.2010126542.

The spelling of 168380423 in words is "one hundred sixty-eight million, three hundred eighty thousand, four hundred twenty-three".