164424423 has 8 divisors (see below), whose sum is σ = 230771200. Its totient is φ = 103846968.

The previous prime is 164424383. The next prime is 164424431. The reversal of 164424423 is 324424461.

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

It is not a de Polignac number, because 164424423 - 2¹⁴ = 164408039 is a prime.

It is a super-3 number, since 3×164424423³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164424433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1442263 + ... + 1442376.

It is an arithmetic number, because the mean of its divisors is an integer number (28846400).

Almost surely, 2^164424423 is an apocalyptic number.

164424423 is a deficient number, since it is larger than the sum of its proper divisors (66346777).

164424423 is a wasteful number, since it uses less digits than its factorization.

164424423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2884661.

The product of its digits is 18432, while the sum is 30.

The square root of 164424423 is about 12822.8087016847. The cubic root of 164424423 is about 547.8421488896.

Adding to 164424423 its reverse (324424461), we get a palindrome (488848884).

The spelling of 164424423 in words is "one hundred sixty-four million, four hundred twenty-four thousand, four hundred twenty-three".