228111488 has 32 divisors (see below), whose sum is σ = 495756720. Its totient is φ = 103686400.

The previous prime is 228111469. The next prime is 228111503. The reversal of 228111488 is 884111822.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79598 + ... + 82413.

Almost surely, 2^228111488 is an apocalyptic number.

It is an amenable number.

228111488 is an abundant number, since it is smaller than the sum of its proper divisors (267645232).

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

228111488 is a wasteful number, since it uses less digits than its factorization.

228111488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162036 (or 162024 counting only the distinct ones).

The product of its digits is 8192, while the sum is 35.

The square root of 228111488 is about 15103.3601559388. The cubic root of 228111488 is about 611.0110332010.

The spelling of 228111488 in words is "two hundred twenty-eight million, one hundred eleven thousand, four hundred eighty-eight".