228481855 has 12 divisors (see below), whose sum is σ = 318942360. Its totient is φ = 156673104.

The previous prime is 228481831. The next prime is 228481867. The reversal of 228481855 is 558184822.

It is not a de Polignac number, because 228481855 - 2⁵ = 228481823 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 466045 + ... + 466534.

It is an arithmetic number, because the mean of its divisors is an integer number (26578530).

Almost surely, 2^228481855 is an apocalyptic number.

228481855 is a deficient number, since it is larger than the sum of its proper divisors (90460505).

228481855 is an equidigital number, since it uses as much as digits as its factorization.

228481855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932598 (or 932591 counting only the distinct ones).

The product of its digits is 204800, while the sum is 43.

The square root of 228481855 is about 15115.6162626603. The cubic root of 228481855 is about 611.3415381970.

The spelling of 228481855 in words is "two hundred twenty-eight million, four hundred eighty-one thousand, eight hundred fifty-five".