228481305 has 16 divisors (see below), whose sum is σ = 393691200. Its totient is φ = 112483008.

The previous prime is 228481303. The next prime is 228481369. The reversal of 228481305 is 503184822.

It is not a de Polignac number, because 228481305 - 2¹ = 228481303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228481301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 585655 + ... + 586044.

It is an arithmetic number, because the mean of its divisors is an integer number (24605700).

Almost surely, 2^228481305 is an apocalyptic number.

It is an amenable number.

228481305 is a deficient number, since it is larger than the sum of its proper divisors (165209895).

228481305 is a wasteful number, since it uses less digits than its factorization.

228481305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171720.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 228481305 is about 15115.5980695439. The cubic root of 228481305 is about 611.3410476575.

The spelling of 228481305 in words is "two hundred twenty-eight million, four hundred eighty-one thousand, three hundred five".