164243404 has 24 divisors (see below), whose sum is σ = 310111200. Its totient is φ = 75663744.

The previous prime is 164243399. The next prime is 164243411. The reversal of 164243404 is 404342461.

164243404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28512 + ... + 33784.

It is an arithmetic number, because the mean of its divisors is an integer number (12921300).

Almost surely, 2^164243404 is an apocalyptic number.

It is an amenable number.

164243404 is a deficient number, since it is larger than the sum of its proper divisors (145867796).

164243404 is a wasteful number, since it uses less digits than its factorization.

164243404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5889 (or 5887 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 164243404 is about 12815.7482809237. The cubic root of 164243404 is about 547.6410306468.

Adding to 164243404 its reverse (404342461), we get a palindrome (568585865).

The spelling of 164243404 in words is "one hundred sixty-four million, two hundred forty-three thousand, four hundred four".