164043028 has 12 divisors (see below), whose sum is σ = 287668192. Its totient is φ = 81852120.

The previous prime is 164043007. The next prime is 164043029. The reversal of 164043028 is 820340461.

It is a junction number, because it is equal to n+sod(n) for n = 164042987 and 164043005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164043029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40158 + ... + 44053.

Almost surely, 2^164043028 is an apocalyptic number.

It is an amenable number.

164043028 is a deficient number, since it is larger than the sum of its proper divisors (123625164).

164043028 is a wasteful number, since it uses less digits than its factorization.

164043028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84702 (or 84700 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 164043028 is about 12807.9283258457. The cubic root of 164043028 is about 547.4182337252.

Adding to 164043028 its reverse (820340461), we get a palindrome (984383489).

The spelling of 164043028 in words is "one hundred sixty-four million, forty-three thousand, twenty-eight".