228815000 has 40 divisors (see below), whose sum is σ = 536125260. Its totient is φ = 91524000.

The previous prime is 228814991. The next prime is 228815003. The reversal of 228815000 is 518822.

228815000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228815003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 17882 + ... + 27881.

Almost surely, 2^228815000 is an apocalyptic number.

228815000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228815000 is an abundant number, since it is smaller than the sum of its proper divisors (307310260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228815000 is an equidigital number, since it uses as much as digits as its factorization.

228815000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45789 (or 45770 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 228815000 is about 15126.6321433424. The cubic root of 228815000 is about 611.6385223492.

The spelling of 228815000 in words is "two hundred twenty-eight million, eight hundred fifteen thousand".