228319884 has 168 divisors, whose sum is σ = 681245040. Its totient is φ = 66344832.

The previous prime is 228319879. The next prime is 228319901. The reversal of 228319884 is 488913822.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 720094 + ... + 720410.

It is an arithmetic number, because the mean of its divisors is an integer number (4055030).

Almost surely, 2^228319884 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 228319884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340622520).

228319884 is an abundant number, since it is smaller than the sum of its proper divisors (452925156).

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

228319884 is a wasteful number, since it uses less digits than its factorization.

228319884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371 (or 354 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 228319884 is about 15110.2575755677. The cubic root of 228319884 is about 611.1970438521.

The spelling of 228319884 in words is "two hundred twenty-eight million, three hundred nineteen thousand, eight hundred eighty-four".