228466305 has 64 divisors (see below), whose sum is σ = 425502720. Its totient is φ = 116183808.

The previous prime is 228466297. The next prime is 228466307. The reversal of 228466305 is 503664822.

228466305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 228466305 - 2³ = 228466297 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 228466305.

It is not an unprimeable number, because it can be changed into a prime (228466307) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 264304 + ... + 265166.

It is an arithmetic number, because the mean of its divisors is an integer number (6648480).

Almost surely, 2^228466305 is an apocalyptic number.

It is an amenable number.

228466305 is a deficient number, since it is larger than the sum of its proper divisors (197036415).

228466305 is a wasteful number, since it uses less digits than its factorization.

228466305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967 (or 961 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 228466305 is about 15115.1018852008. The cubic root of 228466305 is about 611.3276690044.

The spelling of 228466305 in words is "two hundred twenty-eight million, four hundred sixty-six thousand, three hundred five".