308180228 has 24 divisors (see below), whose sum is σ = 569788800. Its totient is φ = 145443168.

The previous prime is 308180227. The next prime is 308180281. The reversal of 308180228 is 822081803.

It is a junction number, because it is equal to n+sod(n) for n = 308180194 and 308180203.

It is not an unprimeable number, because it can be changed into a prime (308180221) 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, 13733 + ... + 28371.

It is an arithmetic number, because the mean of its divisors is an integer number (23741200).

Almost surely, 2^308180228 is an apocalyptic number.

308180228 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

308180228 is a deficient number, since it is larger than the sum of its proper divisors (261608572).

308180228 is a wasteful number, since it uses less digits than its factorization.

308180228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14939 (or 14937 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 308180228 is about 17555.0627455444. The cubic root of 308180228 is about 675.4630406783.

The spelling of 308180228 in words is "three hundred eight million, one hundred eighty thousand, two hundred twenty-eight".