228015318 has 16 divisors (see below), whose sum is σ = 456730560. Its totient is φ = 75888456.

The previous prime is 228015317. The next prime is 228015329. The reversal of 228015318 is 813510822.

It is a super-2 number, since 2×228015318² = 103981970485282248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228015317) 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 7 ways as a sum of consecutive naturals, for example, 24880 + ... + 32787.

It is an arithmetic number, because the mean of its divisors is an integer number (28545660).

Almost surely, 2^228015318 is an apocalyptic number.

228015318 is an abundant number, since it is smaller than the sum of its proper divisors (228715242).

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

228015318 is a wasteful number, since it uses less digits than its factorization.

228015318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58331.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 228015318 is about 15100.1760916885. The cubic root of 228015318 is about 610.9251553243.

The spelling of 228015318 in words is "two hundred twenty-eight million, fifteen thousand, three hundred eighteen".