164432 has 20 divisors (see below), whose sum is σ = 327360. Its totient is φ = 79968.

The previous prime is 164431. The next prime is 164443. The reversal of 164432 is 234461.

It is a happy number.

It is a super-3 number, since 3×164432³ = 13337679346888704, which contains 333 as substring.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 569 + ... + 807.

It is an arithmetic number, because the mean of its divisors is an integer number (16368).

2¹⁶⁴⁴³² is an apocalyptic number.

It is an amenable number.

164432 is a deficient number, since it is larger than the sum of its proper divisors (162928).

164432 is a wasteful number, since it uses less digits than its factorization.

164432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290 (or 284 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 164432 is about 405.5021578241. The cubic root of 164432 is about 54.7850563974.

Adding to 164432 its reverse (234461), we get a palindrome (398893).

The spelling of 164432 in words is "one hundred sixty-four thousand, four hundred thirty-two".