228000000 has 252 divisors, whose sum is σ = 798427280. Its totient is φ = 57600000.

The previous prime is 227999977. The next prime is 228000037. The reversal of 228000000 is 822.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a self number, because there is not a number n which added to its sum of digits gives 228000000.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 11999991 + ... + 12000009.

Almost surely, 2^228000000 is an apocalyptic number.

228000000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (399213640).

228000000 is an abundant number, since it is smaller than the sum of its proper divisors (570427280).

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

228000000 is an frugal number, since it uses more digits than its factorization.

228000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68 (or 29 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 228000000 is about 15099.6688705415. The cubic root of 228000000 is about 610.9114744290.

Adding to 228000000 its reverse (822), we get a palindrome (228000822).

The spelling of 228000000 in words is "two hundred twenty-eight million", and thus it is an aban number.