168464419 has 4 divisors (see below), whose sum is σ = 170596960. Its totient is φ = 166331880.

The previous prime is 168464389. The next prime is 168464437. The reversal of 168464419 is 914464861.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 168464419 - 2⁹ = 168463907 is a prime.

It is a super-2 number, since 2×168464419² = 56760520938015122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168464479) 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, 1066152 + ... + 1066309.

It is an arithmetic number, because the mean of its divisors is an integer number (42649240).

Almost surely, 2^168464419 is an apocalyptic number.

168464419 is a deficient number, since it is larger than the sum of its proper divisors (2132541).

168464419 is an equidigital number, since it uses as much as digits as its factorization.

168464419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132540.

The product of its digits is 165888, while the sum is 43.

The square root of 168464419 is about 12979.3843844768. The cubic root of 168464419 is about 552.2928185878.

The spelling of 168464419 in words is "one hundred sixty-eight million, four hundred sixty-four thousand, four hundred nineteen".