228753428 has 24 divisors (see below), whose sum is σ = 425400192. Its totient is φ = 107259264.

The previous prime is 228753419. The next prime is 228753439. The reversal of 228753428 is 824357822.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13301 + ... + 25187.

It is an arithmetic number, because the mean of its divisors is an integer number (17725008).

Almost surely, 2^228753428 is an apocalyptic number.

It is an amenable number.

228753428 is a deficient number, since it is larger than the sum of its proper divisors (196646764).

228753428 is a wasteful number, since it uses less digits than its factorization.

228753428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12191 (or 12189 counting only the distinct ones).

The product of its digits is 215040, while the sum is 41.

The square root of 228753428 is about 15124.5967880139. The cubic root of 228753428 is about 611.5836553379.

The spelling of 228753428 in words is "two hundred twenty-eight million, seven hundred fifty-three thousand, four hundred twenty-eight".