678478080 has 288 divisors, whose sum is σ = 2538353664. Its totient is φ = 151216128.

The previous prime is 678478079. The next prime is 678478159. The reversal of 678478080 is 80874876.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1155547 + ... + 1156133.

It is an arithmetic number, because the mean of its divisors is an integer number (8813728).

Almost surely, 2^678478080 is an apocalyptic number.

678478080 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 678478080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1269176832).

678478080 is an abundant number, since it is smaller than the sum of its proper divisors (1859875584).

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

678478080 is a wasteful number, since it uses less digits than its factorization.

678478080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661 (or 647 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 48.

The square root of 678478080 is about 26047.6117907189. The cubic root of 678478080 is about 878.7094029175.

The spelling of 678478080 in words is "six hundred seventy-eight million, four hundred seventy-eight thousand, eighty".