305703228 has 24 divisors (see below), whose sum is σ = 728485632. Its totient is φ = 99732784.

The previous prime is 305703199. The next prime is 305703241. The reversal of 305703228 is 822307503.

It is a junction number, because it is equal to n+sod(n) for n = 305703195 and 305703204.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 270450 + ... + 271577.

It is an arithmetic number, because the mean of its divisors is an integer number (30353568).

Almost surely, 2^305703228 is an apocalyptic number.

It is an amenable number.

305703228 is an abundant number, since it is smaller than the sum of its proper divisors (422782404).

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

305703228 is a wasteful number, since it uses less digits than its factorization.

305703228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542081 (or 542079 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 305703228 is about 17484.3709638065. The cubic root of 305703228 is about 673.6484913786.

The spelling of 305703228 in words is "three hundred five million, seven hundred three thousand, two hundred twenty-eight".