678282108 has 144 divisors (see below), whose sum is σ = 1921941504. Its totient is φ = 185431680.

The previous prime is 678282067. The next prime is 678282109. The reversal of 678282108 is 801282876.

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 678282108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678282109) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2314810 + ... + 2315102.

It is an arithmetic number, because the mean of its divisors is an integer number (13346816).

Almost surely, 2^678282108 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 678282108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (960970752).

678282108 is an abundant number, since it is smaller than the sum of its proper divisors (1243659396).

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

678282108 is a wasteful number, since it uses less digits than its factorization.

678282108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472 (or 463 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 42.

The square root of 678282108 is about 26043.8497154319. The cubic root of 678282108 is about 878.6247924604.

The spelling of 678282108 in words is "six hundred seventy-eight million, two hundred eighty-two thousand, one hundred eight".