228415648 has 12 divisors (see below), whose sum is σ = 449693370. Its totient is φ = 114207808.

The previous prime is 228415639. The next prime is 228415667. The reversal of 228415648 is 846514822.

It is a happy number.

228415648 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 225360144 + 3055504 = 15012^2 + 1748^2 .

It is a super-3 number, since 3×228415648³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 228415648.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3568963 + ... + 3569026.

Almost surely, 2^228415648 is an apocalyptic number.

It is an amenable number.

228415648 is a deficient number, since it is larger than the sum of its proper divisors (221277722).

228415648 is an equidigital number, since it uses as much as digits as its factorization.

228415648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7137999 (or 7137991 counting only the distinct ones).

The product of its digits is 122880, while the sum is 40.

The square root of 228415648 is about 15113.4260841147. The cubic root of 228415648 is about 611.2824831803.

The spelling of 228415648 in words is "two hundred twenty-eight million, four hundred fifteen thousand, six hundred forty-eight".