228689330 has 16 divisors (see below), whose sum is σ = 412352640. Its totient is φ = 91317552.

The previous prime is 228689323. The next prime is 228689359. The reversal of 228689330 is 33986822.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13610 + ... + 25349.

It is an arithmetic number, because the mean of its divisors is an integer number (25772040).

Almost surely, 2^228689330 is an apocalyptic number.

228689330 is a deficient number, since it is larger than the sum of its proper divisors (183663310).

228689330 is a wasteful number, since it uses less digits than its factorization.

228689330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39553.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 228689330 is about 15122.4776409159. The cubic root of 228689330 is about 611.5265269391.

The spelling of 228689330 in words is "two hundred twenty-eight million, six hundred eighty-nine thousand, three hundred thirty".