306327228 has 24 divisors (see below), whose sum is σ = 724832640. Its totient is φ = 100670640.

The previous prime is 306327223. The next prime is 306327239. The reversal of 306327228 is 822723603.

It is a super-2 number, since 2×306327228² = 187672741228327968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306327221) 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, 178918 + ... + 180621.

It is an arithmetic number, because the mean of its divisors is an integer number (30201360).

Almost surely, 2^306327228 is an apocalyptic number.

It is an amenable number.

306327228 is an abundant number, since it is smaller than the sum of its proper divisors (418505412).

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

306327228 is a wasteful number, since it uses less digits than its factorization.

306327228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359617 (or 359615 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 306327228 is about 17502.2063751974. The cubic root of 306327228 is about 674.1065292555.

The spelling of 306327228 in words is "three hundred six million, three hundred twenty-seven thousand, two hundred twenty-eight".