228351628 has 6 divisors (see below), whose sum is σ = 399615356. Its totient is φ = 114175812.

The previous prime is 228351587. The next prime is 228351631. The reversal of 228351628 is 826153822.

228351628 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28543950 + ... + 28543957.

Almost surely, 2^228351628 is an apocalyptic number.

It is an amenable number.

228351628 is a deficient number, since it is larger than the sum of its proper divisors (171263728).

228351628 is a wasteful number, since it uses less digits than its factorization.

228351628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57087911 (or 57087909 counting only the distinct ones).

The product of its digits is 46080, while the sum is 37.

The square root of 228351628 is about 15111.3079513323. The cubic root of 228351628 is about 611.2253680604.

The spelling of 228351628 in words is "two hundred twenty-eight million, three hundred fifty-one thousand, six hundred twenty-eight".