228633855 has 32 divisors (see below), whose sum is σ = 371879424. Its totient is φ = 119934336.

The previous prime is 228633851. The next prime is 228633857. The reversal of 228633855 is 558336822.

It is not a de Polignac number, because 228633855 - 2² = 228633851 is a prime.

It is a super-2 number, since 2×228633855² = 104546879304322050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228633851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 267609 + ... + 268461.

It is an arithmetic number, because the mean of its divisors is an integer number (11621232).

Almost surely, 2^228633855 is an apocalyptic number.

228633855 is a deficient number, since it is larger than the sum of its proper divisors (143245569).

228633855 is a wasteful number, since it uses less digits than its factorization.

228633855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135.

The product of its digits is 345600, while the sum is 42.

The square root of 228633855 is about 15120.6433394879. The cubic root of 228633855 is about 611.4770753132.

The spelling of 228633855 in words is "two hundred twenty-eight million, six hundred thirty-three thousand, eight hundred fifty-five".