678360228 has 192 divisors, whose sum is σ = 2083307520. Its totient is φ = 166924800.

The previous prime is 678360227. The next prime is 678360233. The reversal of 678360228 is 822063876.

678360228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 678360228.

It is not an unprimeable number, because it can be changed into a prime (678360223) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 981363 + ... + 982053.

It is an arithmetic number, because the mean of its divisors is an integer number (10850560).

Almost surely, 2^678360228 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 678360228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1041653760).

678360228 is an abundant number, since it is smaller than the sum of its proper divisors (1404947292).

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

678360228 is a wasteful number, since it uses less digits than its factorization.

678360228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778 (or 776 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 678360228 is about 26045.3494505257. The cubic root of 678360228 is about 878.6585225426.

The spelling of 678360228 in words is "six hundred seventy-eight million, three hundred sixty thousand, two hundred twenty-eight".