228686716944 has 135 divisors (see below), whose sum is σ = 744626626653. Its totient is φ = 65327584896.

The previous prime is 228686716883. The next prime is 228686716967. The reversal of 228686716944 is 449617686822.

The square root of 228686716944 is 478212.

It is a perfect power (a square), and thus also a powerful number.

228686716944 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 28083056400 + 200603660544 = 167580^2 + 447888^2 .

It is a super-2 number, since 2×228686716944² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

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 26 ways as a sum of consecutive naturals, for example, 40166962 + ... + 40172654.

Almost surely, 2^228686716944 is an apocalyptic number.

228686716944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

228686716944 is the 478212-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228686716944

228686716944 is an abundant number, since it is smaller than the sum of its proper divisors (515939909709).

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

228686716944 is an frugal number, since it uses more digits than its factorization.

228686716944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11414 (or 5705 counting only the distinct ones).

The product of its digits is 55738368, while the sum is 63.

The spelling of 228686716944 in words is "two hundred twenty-eight billion, six hundred eighty-six million, seven hundred sixteen thousand, nine hundred forty-four".