678230280 has 512 divisors, whose sum is σ = 2851430400. Its totient is φ = 139594752.

The previous prime is 678230261. The next prime is 678230281. The reversal of 678230280 is 82032876.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (678230281) 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 127 ways as a sum of consecutive naturals, for example, 6584709 + ... + 6584811.

It is an arithmetic number, because the mean of its divisors is an integer number (5569200).

Almost surely, 2^678230280 is an apocalyptic number.

678230280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 678230280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1425715200).

678230280 is an abundant number, since it is smaller than the sum of its proper divisors (2173200120).

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

678230280 is a wasteful number, since it uses less digits than its factorization.

678230280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210 (or 200 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 678230280 is about 26042.8546822348. The cubic root of 678230280 is about 878.6024131165.

The spelling of 678230280 in words is "six hundred seventy-eight million, two hundred thirty thousand, two hundred eighty".