678341580 has 96 divisors (see below), whose sum is σ = 2187440640. Its totient is φ = 153853440.

The previous prime is 678341563. The next prime is 678341611. The reversal of 678341580 is 85143876.

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

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, 48856 + ... + 61184.

It is an arithmetic number, because the mean of its divisors is an integer number (22785840).

Almost surely, 2^678341580 is an apocalyptic number.

678341580 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 678341580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1093720320).

678341580 is an abundant number, since it is smaller than the sum of its proper divisors (1509099060).

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

678341580 is a wasteful number, since it uses less digits than its factorization.

678341580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12479 (or 12477 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 678341580 is about 26044.9914570921. The cubic root of 678341580 is about 878.6504710809.

The spelling of 678341580 in words is "six hundred seventy-eight million, three hundred forty-one thousand, five hundred eighty".