164434 has 4 divisors (see below), whose sum is σ = 246654. Its totient is φ = 82216.

The previous prime is 164431. The next prime is 164443. The reversal of 164434 is 434461.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 162409 + 2025 = 403^2 + 45^2 .

It is a super-3 number, since 3×164434³ = 13338166034695512, which contains 333 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (164431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41107 + ... + 41110.

2¹⁶⁴⁴³⁴ is an apocalyptic number.

164434 is a deficient number, since it is larger than the sum of its proper divisors (82220).

164434 is an equidigital number, since it uses as much as digits as its factorization.

164434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82219.

The product of its digits is 1152, while the sum is 22.

The square root of 164434 is about 405.5046238947. The cubic root of 164434 is about 54.7852785149.

Adding to 164434 its reverse (434461), we get a palindrome (598895).

The spelling of 164434 in words is "one hundred sixty-four thousand, four hundred thirty-four".