228333066 has 32 divisors (see below), whose sum is σ = 508757760. Its totient is φ = 67833024.

The previous prime is 228333041. The next prime is 228333067. The reversal of 228333066 is 660333822.

It is not an unprimeable number, because it can be changed into a prime (228333067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48210 + ... + 52733.

It is an arithmetic number, because the mean of its divisors is an integer number (15898680).

Almost surely, 2^228333066 is an apocalyptic number.

228333066 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

228333066 is an abundant number, since it is smaller than the sum of its proper divisors (280424694).

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

228333066 is a wasteful number, since it uses less digits than its factorization.

228333066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100990.

The product of its (nonzero) digits is 31104, while the sum is 33.

The square root of 228333066 is about 15110.6937630276. The cubic root of 228333066 is about 611.2088060696.

Adding to 228333066 its reverse (660333822), we get a palindrome (888666888).

The spelling of 228333066 in words is "two hundred twenty-eight million, three hundred thirty-three thousand, sixty-six".