164243432 has 16 divisors (see below), whose sum is σ = 309739140. Its totient is φ = 81646336.

The previous prime is 164243423. The next prime is 164243459. The reversal of 164243432 is 234342461.

164243432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 120868036 + 43375396 = 10994^2 + 6586^2 .

It is a junction number, because it is equal to n+sod(n) for n = 164243395 and 164243404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57953 + ... + 60720.

Almost surely, 2^164243432 is an apocalyptic number.

It is an amenable number.

164243432 is a deficient number, since it is larger than the sum of its proper divisors (145495708).

164243432 is a wasteful number, since it uses less digits than its factorization.

164243432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118852 (or 118848 counting only the distinct ones).

The product of its digits is 13824, while the sum is 29.

The square root of 164243432 is about 12815.7493733297. The cubic root of 164243432 is about 547.6410617672.

Adding to 164243432 its reverse (234342461), we get a palindrome (398585893).

The spelling of 164243432 in words is "one hundred sixty-four million, two hundred forty-three thousand, four hundred thirty-two".