164236228 has 54 divisors (see below), whose sum is σ = 328953114. Its totient is φ = 71705088.

The previous prime is 164236223. The next prime is 164236231. The reversal of 164236228 is 822632461.

It can be written as a sum of positive squares in 3 ways, for example, as 1214404 + 163021824 = 1102^2 + 12768^2 .

It is a junction number, because it is equal to n+sod(n) for n = 164236193 and 164236202.

It is not an unprimeable number, because it can be changed into a prime (164236223) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 243700 + ... + 244372.

Almost surely, 2^164236228 is an apocalyptic number.

It is an amenable number.

164236228 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

164236228 is a wasteful number, since it uses less digits than its factorization.

164236228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741 (or 707 counting only the distinct ones).

The product of its digits is 27648, while the sum is 34.

The square root of 164236228 is about 12815.4683098200. The cubic root of 164236228 is about 547.6330548232.

Adding to 164236228 its reverse (822632461), we get a palindrome (986868689).

The spelling of 164236228 in words is "one hundred sixty-four million, two hundred thirty-six thousand, two hundred twenty-eight".