228448320 has 56 divisors (see below), whose sum is σ = 725326464. Its totient is φ = 60919296.

The previous prime is 228448313. The next prime is 228448327. The reversal of 228448320 is 23844822.

It is an interprime number because it is at equal distance from previous prime (228448313) and next prime (228448327).

It is not an unprimeable number, because it can be changed into a prime (228448327) 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 7 ways as a sum of consecutive naturals, for example, 118024 + ... + 119943.

Almost surely, 2^228448320 is an apocalyptic number.

228448320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228448320 is an abundant number, since it is smaller than the sum of its proper divisors (496878144).

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

228448320 is a wasteful number, since it uses less digits than its factorization.

228448320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237987 (or 237977 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 33.

The square root of 228448320 is about 15114.5069386997. The cubic root of 228448320 is about 611.3116272272.

The spelling of 228448320 in words is "two hundred twenty-eight million, four hundred forty-eight thousand, three hundred twenty".