228016656 has 120 divisors (see below), whose sum is σ = 752920064. Its totient is φ = 63037440.

The previous prime is 228016643. The next prime is 228016661. The reversal of 228016656 is 656610822.

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

It is a nialpdrome in base 12 and base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 228016656.

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 23 ways as a sum of consecutive naturals, for example, 27600 + ... + 34896.

Almost surely, 2^228016656 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 228016656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (376460032).

228016656 is an abundant number, since it is smaller than the sum of its proper divisors (524903408).

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

228016656 is a wasteful number, since it uses less digits than its factorization.

228016656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7349 (or 7340 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 228016656 is about 15100.2203957426. The cubic root of 228016656 is about 610.9263502970.

The spelling of 228016656 in words is "two hundred twenty-eight million, sixteen thousand, six hundred fifty-six".