678133380 has 72 divisors (see below), whose sum is σ = 1984159296. Its totient is φ = 172726400.

The previous prime is 678133367. The next prime is 678133381. The reversal of 678133380 is 83331876.

678133380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (678133381) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 967030 + ... + 967730.

It is an arithmetic number, because the mean of its divisors is an integer number (27557768).

Almost surely, 2^678133380 is an apocalyptic number.

678133380 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 678133380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (992079648).

678133380 is an abundant number, since it is smaller than the sum of its proper divisors (1306025916).

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

678133380 is a wasteful number, since it uses less digits than its factorization.

678133380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1437 (or 734 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 678133380 is about 26040.9942206514. The cubic root of 678133380 is about 878.5605686126.

The spelling of 678133380 in words is "six hundred seventy-eight million, one hundred thirty-three thousand, three hundred eighty".