228211984 has 80 divisors (see below), whose sum is σ = 593712000. Its totient is φ = 82068480.

The previous prime is 228211909. The next prime is 228211993. The reversal of 228211984 is 489112822.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8892 + ... + 23140.

It is an arithmetic number, because the mean of its divisors is an integer number (7421400).

Almost surely, 2^228211984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228211984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296856000).

228211984 is an abundant number, since it is smaller than the sum of its proper divisors (365500016).

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

228211984 is a wasteful number, since it uses less digits than its factorization.

228211984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14288 (or 14282 counting only the distinct ones).

The product of its digits is 18432, while the sum is 37.

The square root of 228211984 is about 15106.6867313783. The cubic root of 228211984 is about 611.1007483226.

It can be divided in two parts, 228 and 211984, that added together give a palindrome (212212).

The spelling of 228211984 in words is "two hundred twenty-eight million, two hundred eleven thousand, nine hundred eighty-four".