228145176 has 72 divisors (see below), whose sum is σ = 718784820. Its totient is φ = 65183328.

The previous prime is 228145123. The next prime is 228145187. The reversal of 228145176 is 671541822.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 228145176.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 28806 + ... + 35861.

Almost surely, 2^228145176 is an apocalyptic number.

It is an amenable number.

228145176 is an abundant number, since it is smaller than the sum of its proper divisors (490639644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228145176 is a wasteful number, since it uses less digits than its factorization.

228145176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64693 (or 64679 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 228145176 is about 15104.4753632822. The cubic root of 228145176 is about 611.0411101992.

Adding to 228145176 its reverse (671541822), we get a palindrome (899686998).

The spelling of 228145176 in words is "two hundred twenty-eight million, one hundred forty-five thousand, one hundred seventy-six".