228144164 has 12 divisors (see below), whose sum is σ = 401044224. Its totient is φ = 113560104.

The previous prime is 228144151. The next prime is 228144173. The reversal of 228144164 is 461441822.

It is a self number, because there is not a number n which added to its sum of digits gives 228144164.

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, 126992 + ... + 128775.

It is an arithmetic number, because the mean of its divisors is an integer number (33420352).

Almost surely, 2^228144164 is an apocalyptic number.

It is an amenable number.

228144164 is a deficient number, since it is larger than the sum of its proper divisors (172900060).

228144164 is a wasteful number, since it uses less digits than its factorization.

228144164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255994 (or 255992 counting only the distinct ones).

The product of its digits is 12288, while the sum is 32.

The square root of 228144164 is about 15104.4418632401. The cubic root of 228144164 is about 611.0402067182.

Adding to 228144164 its reverse (461441822), we get a palindrome (689585986).

The spelling of 228144164 in words is "two hundred twenty-eight million, one hundred forty-four thousand, one hundred sixty-four".