228130816 has 51 divisors (see below), whose sum is σ = 464122411. Its totient is φ = 112132096.

The previous prime is 228130801. The next prime is 228130817. The reversal of 228130816 is 618031822.

The square root of 228130816 is 15104.

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

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (228130817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3866595 + ... + 3866653.

Almost surely, 2^228130816 is an apocalyptic number.

228130816 is the 15104-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228130816

228130816 is an abundant number, since it is smaller than the sum of its proper divisors (235991595).

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

228130816 is an frugal number, since it uses more digits than its factorization.

228130816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150 (or 61 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The cubic root of 228130816 is about 611.0282898033.

It can be divided in two parts, 228 and 130816, that added together give a square (131044 = 362²).

The spelling of 228130816 in words is "two hundred twenty-eight million, one hundred thirty thousand, eight hundred sixteen".