228405303 has 48 divisors (see below), whose sum is σ = 393209856. Its totient is φ = 125012160.

The previous prime is 228405299. The next prime is 228405313. The reversal of 228405303 is 303504822.

228405303 is a `hidden beast` number, since 228 + 405 + 30 + 3 = 666.

It is not a de Polignac number, because 228405303 - 2² = 228405299 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228405313) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 208425 + ... + 209517.

It is an arithmetic number, because the mean of its divisors is an integer number (8191872).

Almost surely, 2^228405303 is an apocalyptic number.

228405303 is a deficient number, since it is larger than the sum of its proper divisors (164804553).

228405303 is a wasteful number, since it uses less digits than its factorization.

228405303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244 (or 1241 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 228405303 is about 15113.0838348763. The cubic root of 228405303 is about 611.2732546637.

The spelling of 228405303 in words is "two hundred twenty-eight million, four hundred five thousand, three hundred three".