305358228 has 96 divisors (see below), whose sum is σ = 921957120. Its totient is φ = 85587840.

The previous prime is 305358227. The next prime is 305358239. The reversal of 305358228 is 822853503.

305358228 is a `hidden beast` number, since 3 + 0 + 53 + 582 + 28 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 305358192 and 305358201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305358227) 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 31 ways as a sum of consecutive naturals, for example, 36258 + ... + 43878.

It is an arithmetic number, because the mean of its divisors is an integer number (9603720).

Almost surely, 2^305358228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 305358228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (460978560).

305358228 is an abundant number, since it is smaller than the sum of its proper divisors (616598892).

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

305358228 is a wasteful number, since it uses less digits than its factorization.

305358228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7694 (or 7686 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 305358228 is about 17474.5022246701. The cubic root of 305358228 is about 673.3949816661.

The spelling of 305358228 in words is "three hundred five million, three hundred fifty-eight thousand, two hundred twenty-eight".