228287304 has 96 divisors (see below), whose sum is σ = 731016000. Its totient is φ = 62971776.

The previous prime is 228287287. The next prime is 228287309. The reversal of 228287304 is 403782822.

228287304 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (228287309) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6807 + ... + 22425.

It is an arithmetic number, because the mean of its divisors is an integer number (7614750).

Almost surely, 2^228287304 is an apocalyptic number.

228287304 is a gapful number since it is divisible by the number (24) 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 228287304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (365508000).

228287304 is an abundant number, since it is smaller than the sum of its proper divisors (502728696).

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

228287304 is a wasteful number, since it uses less digits than its factorization.

228287304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15667 (or 15660 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 228287304 is about 15109.1794615062. The cubic root of 228287304 is about 611.1679709763.

The spelling of 228287304 in words is "two hundred twenty-eight million, two hundred eighty-seven thousand, three hundred four".