228144168 has 64 divisors (see below), whose sum is σ = 724272000. Its totient is φ = 65183616.

The previous prime is 228144151. The next prime is 228144173. The reversal of 228144168 is 861441822.

228144168 is a `hidden beast` number, since 228 + 14 + 416 + 8 = 666.

It is a super-2 number, since 2×228144168² = 104099522784824448, which contains 22 as substring.

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

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73933 + ... + 76956.

It is an arithmetic number, because the mean of its divisors is an integer number (11316750).

Almost surely, 2^228144168 is an apocalyptic number.

228144168 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

228144168 is an abundant number, since it is smaller than the sum of its proper divisors (496127832).

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

228144168 is a wasteful number, since it uses less digits than its factorization.

228144168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150911 (or 150901 counting only the distinct ones).

The product of its digits is 24576, while the sum is 36.

The square root of 228144168 is about 15104.4419956515. The cubic root of 228144168 is about 611.0402102893.

The spelling of 228144168 in words is "two hundred twenty-eight million, one hundred forty-four thousand, one hundred sixty-eight".